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c16bb0547f222a6f753fa17623941fbc1e8cc4cd
[libav.git] / avconv.c
1 /*
2 * avconv main
3 * Copyright (c) 2000-2011 The libav developers.
4 *
5 * This file is part of Libav.
6 *
7 * Libav is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * Libav is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with Libav; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22 #include "config.h"
23 #include <ctype.h>
24 #include <string.h>
25 #include <math.h>
26 #include <stdlib.h>
27 #include <errno.h>
28 #include <signal.h>
29 #include <limits.h>
30 #include <unistd.h>
31 #include "libavformat/avformat.h"
32 #include "libavdevice/avdevice.h"
33 #include "libswscale/swscale.h"
34 #include "libavutil/opt.h"
35 #include "libavcodec/audioconvert.h"
36 #include "libavutil/audioconvert.h"
37 #include "libavutil/parseutils.h"
38 #include "libavutil/samplefmt.h"
39 #include "libavutil/colorspace.h"
40 #include "libavutil/fifo.h"
41 #include "libavutil/intreadwrite.h"
42 #include "libavutil/dict.h"
43 #include "libavutil/mathematics.h"
44 #include "libavutil/pixdesc.h"
45 #include "libavutil/avstring.h"
46 #include "libavutil/libm.h"
47 #include "libavformat/os_support.h"
48
49 #if CONFIG_AVFILTER
50 # include "libavfilter/avfilter.h"
51 # include "libavfilter/avfiltergraph.h"
52 # include "libavfilter/vsrc_buffer.h"
53 #endif
54
55 #if HAVE_SYS_RESOURCE_H
56 #include <sys/types.h>
57 #include <sys/time.h>
58 #include <sys/resource.h>
59 #elif HAVE_GETPROCESSTIMES
60 #include <windows.h>
61 #endif
62 #if HAVE_GETPROCESSMEMORYINFO
63 #include <windows.h>
64 #include <psapi.h>
65 #endif
66
67 #if HAVE_SYS_SELECT_H
68 #include <sys/select.h>
69 #endif
70
71 #include <time.h>
72
73 #include "cmdutils.h"
74
75 #include "libavutil/avassert.h"
76
77 const char program_name[] = "avconv";
78 const int program_birth_year = 2000;
79
80 /* select an input stream for an output stream */
81 typedef struct StreamMap {
82 int disabled; /** 1 is this mapping is disabled by a negative map */
83 int file_index;
84 int stream_index;
85 int sync_file_index;
86 int sync_stream_index;
87 } StreamMap;
88
89 /**
90 * select an input file for an output file
91 */
92 typedef struct MetadataMap {
93 int file; //< file index
94 char type; //< type of metadata to copy -- (g)lobal, (s)tream, (c)hapter or (p)rogram
95 int index; //< stream/chapter/program number
96 } MetadataMap;
97
98 static const OptionDef options[];
99
100 #define MAX_FILES 100
101
102 static const char *last_asked_format = NULL;
103 static double *ts_scale;
104 static int nb_ts_scale;
105
106 static AVFormatContext *output_files[MAX_FILES];
107 static AVDictionary *output_opts[MAX_FILES];
108 static int nb_output_files = 0;
109
110 static StreamMap *stream_maps = NULL;
111 static int nb_stream_maps;
112
113 static AVDictionary *codec_names;
114
115 /* first item specifies output metadata, second is input */
116 static MetadataMap (*meta_data_maps)[2] = NULL;
117 static int nb_meta_data_maps;
118 static int metadata_global_autocopy = 1;
119 static int metadata_streams_autocopy = 1;
120 static int metadata_chapters_autocopy = 1;
121
122 static int chapters_input_file = INT_MAX;
123
124 /* indexed by output file stream index */
125 static int *streamid_map = NULL;
126 static int nb_streamid_map = 0;
127
128 static int frame_width = 0;
129 static int frame_height = 0;
130 static float frame_aspect_ratio = 0;
131 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
132 static enum AVSampleFormat audio_sample_fmt = AV_SAMPLE_FMT_NONE;
133 static int max_frames[4] = {INT_MAX, INT_MAX, INT_MAX, INT_MAX};
134 static AVRational frame_rate;
135 static float video_qscale = 0;
136 static uint16_t *intra_matrix = NULL;
137 static uint16_t *inter_matrix = NULL;
138 static const char *video_rc_override_string=NULL;
139 static int video_disable = 0;
140 static int video_discard = 0;
141 static unsigned int video_codec_tag = 0;
142 static char *video_language = NULL;
143 static int same_quant = 0;
144 static int do_deinterlace = 0;
145 static int top_field_first = -1;
146 static int me_threshold = 0;
147 static int intra_dc_precision = 8;
148 static int qp_hist = 0;
149 #if CONFIG_AVFILTER
150 static char *vfilters = NULL;
151 #endif
152
153 static int intra_only = 0;
154 static int audio_sample_rate = 0;
155 #define QSCALE_NONE -99999
156 static float audio_qscale = QSCALE_NONE;
157 static int audio_disable = 0;
158 static int audio_channels = 0;
159 static unsigned int audio_codec_tag = 0;
160 static char *audio_language = NULL;
161
162 static int subtitle_disable = 0;
163 static char *subtitle_language = NULL;
164 static unsigned int subtitle_codec_tag = 0;
165
166 static int data_disable = 0;
167 static unsigned int data_codec_tag = 0;
168
169 static float mux_preload= 0.5;
170 static float mux_max_delay= 0.7;
171
172 static int64_t recording_time = INT64_MAX;
173 static int64_t start_time = 0;
174 static int64_t input_ts_offset = 0;
175 static int file_overwrite = 0;
176 static AVDictionary *metadata;
177 static int do_benchmark = 0;
178 static int do_hex_dump = 0;
179 static int do_pkt_dump = 0;
180 static int do_psnr = 0;
181 static int do_pass = 0;
182 static char *pass_logfilename_prefix = NULL;
183 static int video_sync_method= -1;
184 static int audio_sync_method= 0;
185 static float audio_drift_threshold= 0.1;
186 static int copy_ts= 0;
187 static int copy_tb;
188 static int opt_shortest = 0;
189 static char *vstats_filename;
190 static FILE *vstats_file;
191 static int opt_programid = 0;
192 static int copy_initial_nonkeyframes = 0;
193
194 static int rate_emu = 0;
195
196 static int audio_volume = 256;
197
198 static int exit_on_error = 0;
199 static int using_stdin = 0;
200 static int verbose = 1;
201 static int thread_count= 1;
202 static int64_t video_size = 0;
203 static int64_t audio_size = 0;
204 static int64_t extra_size = 0;
205 static int nb_frames_dup = 0;
206 static int nb_frames_drop = 0;
207 static int input_sync;
208 static uint64_t limit_filesize = 0;
209 static int force_fps = 0;
210 static char *forced_key_frames = NULL;
211
212 static float dts_delta_threshold = 10;
213
214 static int64_t timer_start;
215
216 static uint8_t *audio_buf;
217 static uint8_t *audio_out;
218 static unsigned int allocated_audio_out_size, allocated_audio_buf_size;
219
220 static short *samples;
221
222 static AVBitStreamFilterContext *video_bitstream_filters=NULL;
223 static AVBitStreamFilterContext *audio_bitstream_filters=NULL;
224 static AVBitStreamFilterContext *subtitle_bitstream_filters=NULL;
225
226 #define DEFAULT_PASS_LOGFILENAME_PREFIX "av2pass"
227
228 struct InputStream;
229
230 typedef struct OutputStream {
231 int file_index; /* file index */
232 int index; /* stream index in the output file */
233 int source_index; /* InputStream index */
234 AVStream *st; /* stream in the output file */
235 int encoding_needed; /* true if encoding needed for this stream */
236 int frame_number;
237 /* input pts and corresponding output pts
238 for A/V sync */
239 //double sync_ipts; /* dts from the AVPacket of the demuxer in second units */
240 struct InputStream *sync_ist; /* input stream to sync against */
241 int64_t sync_opts; /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
242 AVBitStreamFilterContext *bitstream_filters;
243 AVCodec *enc;
244
245 /* video only */
246 int video_resample;
247 AVFrame pict_tmp; /* temporary image for resampling */
248 struct SwsContext *img_resample_ctx; /* for image resampling */
249 int resample_height;
250 int resample_width;
251 int resample_pix_fmt;
252 AVRational frame_rate;
253
254 float frame_aspect_ratio;
255
256 /* forced key frames */
257 int64_t *forced_kf_pts;
258 int forced_kf_count;
259 int forced_kf_index;
260
261 /* audio only */
262 int audio_resample;
263 ReSampleContext *resample; /* for audio resampling */
264 int resample_sample_fmt;
265 int resample_channels;
266 int resample_sample_rate;
267 int reformat_pair;
268 AVAudioConvert *reformat_ctx;
269 AVFifoBuffer *fifo; /* for compression: one audio fifo per codec */
270 FILE *logfile;
271
272 #if CONFIG_AVFILTER
273 AVFilterContext *output_video_filter;
274 AVFilterContext *input_video_filter;
275 AVFilterBufferRef *picref;
276 char *avfilter;
277 AVFilterGraph *graph;
278 #endif
279
280 int sws_flags;
281 AVDictionary *opts;
282 } OutputStream;
283
284 static OutputStream **output_streams_for_file[MAX_FILES] = { NULL };
285 static int nb_output_streams_for_file[MAX_FILES] = { 0 };
286
287 typedef struct InputStream {
288 int file_index;
289 AVStream *st;
290 int discard; /* true if stream data should be discarded */
291 int decoding_needed; /* true if the packets must be decoded in 'raw_fifo' */
292 AVCodec *dec;
293
294 int64_t start; /* time when read started */
295 int64_t next_pts; /* synthetic pts for cases where pkt.pts
296 is not defined */
297 int64_t pts; /* current pts */
298 PtsCorrectionContext pts_ctx;
299 double ts_scale;
300 int is_start; /* is 1 at the start and after a discontinuity */
301 int showed_multi_packet_warning;
302 int is_past_recording_time;
303 AVDictionary *opts;
304 } InputStream;
305
306 typedef struct InputFile {
307 AVFormatContext *ctx;
308 int eof_reached; /* true if eof reached */
309 int ist_index; /* index of first stream in ist_table */
310 int buffer_size; /* current total buffer size */
311 int64_t ts_offset;
312 } InputFile;
313
314 static InputStream *input_streams = NULL;
315 static int nb_input_streams = 0;
316 static InputFile *input_files = NULL;
317 static int nb_input_files = 0;
318
319 #if CONFIG_AVFILTER
320
321 static int configure_video_filters(InputStream *ist, OutputStream *ost)
322 {
323 AVFilterContext *last_filter, *filter;
324 /** filter graph containing all filters including input & output */
325 AVCodecContext *codec = ost->st->codec;
326 AVCodecContext *icodec = ist->st->codec;
327 FFSinkContext ffsink_ctx = { .pix_fmt = codec->pix_fmt };
328 AVRational sample_aspect_ratio;
329 char args[255];
330 int ret;
331
332 ost->graph = avfilter_graph_alloc();
333
334 if (ist->st->sample_aspect_ratio.num){
335 sample_aspect_ratio = ist->st->sample_aspect_ratio;
336 }else
337 sample_aspect_ratio = ist->st->codec->sample_aspect_ratio;
338
339 snprintf(args, 255, "%d:%d:%d:%d:%d:%d:%d", ist->st->codec->width,
340 ist->st->codec->height, ist->st->codec->pix_fmt, 1, AV_TIME_BASE,
341 sample_aspect_ratio.num, sample_aspect_ratio.den);
342
343 ret = avfilter_graph_create_filter(&ost->input_video_filter, avfilter_get_by_name("buffer"),
344 "src", args, NULL, ost->graph);
345 if (ret < 0)
346 return ret;
347 ret = avfilter_graph_create_filter(&ost->output_video_filter, &ffsink,
348 "out", NULL, &ffsink_ctx, ost->graph);
349 if (ret < 0)
350 return ret;
351 last_filter = ost->input_video_filter;
352
353 if (codec->width != icodec->width || codec->height != icodec->height) {
354 snprintf(args, 255, "%d:%d:flags=0x%X",
355 codec->width,
356 codec->height,
357 ost->sws_flags);
358 if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
359 NULL, args, NULL, ost->graph)) < 0)
360 return ret;
361 if ((ret = avfilter_link(last_filter, 0, filter, 0)) < 0)
362 return ret;
363 last_filter = filter;
364 }
365
366 snprintf(args, sizeof(args), "flags=0x%X", ost->sws_flags);
367 ost->graph->scale_sws_opts = av_strdup(args);
368
369 if (ost->avfilter) {
370 AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
371 AVFilterInOut *inputs = av_malloc(sizeof(AVFilterInOut));
372
373 outputs->name = av_strdup("in");
374 outputs->filter_ctx = last_filter;
375 outputs->pad_idx = 0;
376 outputs->next = NULL;
377
378 inputs->name = av_strdup("out");
379 inputs->filter_ctx = ost->output_video_filter;
380 inputs->pad_idx = 0;
381 inputs->next = NULL;
382
383 if ((ret = avfilter_graph_parse(ost->graph, ost->avfilter, inputs, outputs, NULL)) < 0)
384 return ret;
385 av_freep(&ost->avfilter);
386 } else {
387 if ((ret = avfilter_link(last_filter, 0, ost->output_video_filter, 0)) < 0)
388 return ret;
389 }
390
391 if ((ret = avfilter_graph_config(ost->graph, NULL)) < 0)
392 return ret;
393
394 codec->width = ost->output_video_filter->inputs[0]->w;
395 codec->height = ost->output_video_filter->inputs[0]->h;
396 codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
397 ost->frame_aspect_ratio ? // overriden by the -aspect cli option
398 av_d2q(ost->frame_aspect_ratio*codec->height/codec->width, 255) :
399 ost->output_video_filter->inputs[0]->sample_aspect_ratio;
400
401 return 0;
402 }
403 #endif /* CONFIG_AVFILTER */
404
405 static void term_exit(void)
406 {
407 av_log(NULL, AV_LOG_QUIET, "");
408 }
409
410 static volatile int received_sigterm = 0;
411 static volatile int received_nb_signals = 0;
412
413 static void
414 sigterm_handler(int sig)
415 {
416 received_sigterm = sig;
417 received_nb_signals++;
418 term_exit();
419 }
420
421 static void term_init(void)
422 {
423 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
424 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
425 #ifdef SIGXCPU
426 signal(SIGXCPU, sigterm_handler);
427 #endif
428 }
429
430 static int decode_interrupt_cb(void)
431 {
432 return received_nb_signals > 1;
433 }
434
435 static int exit_program(int ret)
436 {
437 int i;
438
439 /* close files */
440 for(i=0;i<nb_output_files;i++) {
441 AVFormatContext *s = output_files[i];
442 if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
443 avio_close(s->pb);
444 avformat_free_context(s);
445 av_free(output_streams_for_file[i]);
446 av_dict_free(&output_opts[i]);
447 }
448 for(i=0;i<nb_input_files;i++) {
449 av_close_input_file(input_files[i].ctx);
450 }
451 for (i = 0; i < nb_input_streams; i++)
452 av_dict_free(&input_streams[i].opts);
453
454 av_free(intra_matrix);
455 av_free(inter_matrix);
456
457 if (vstats_file)
458 fclose(vstats_file);
459 av_free(vstats_filename);
460
461 av_free(streamid_map);
462 av_free(meta_data_maps);
463
464 av_freep(&input_streams);
465 av_freep(&input_files);
466
467 uninit_opts();
468 av_free(audio_buf);
469 av_free(audio_out);
470 allocated_audio_buf_size= allocated_audio_out_size= 0;
471 av_free(samples);
472
473 #if CONFIG_AVFILTER
474 avfilter_uninit();
475 #endif
476
477 if (received_sigterm) {
478 fprintf(stderr,
479 "Received signal %d: terminating.\n",
480 (int) received_sigterm);
481 exit (255);
482 }
483
484 exit(ret); /* not all OS-es handle main() return value */
485 return ret;
486 }
487
488 static void assert_avoptions(AVDictionary *m)
489 {
490 AVDictionaryEntry *t;
491 if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
492 av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
493 exit_program(1);
494 }
495 }
496
497 static void assert_codec_experimental(AVCodecContext *c, int encoder)
498 {
499 const char *codec_string = encoder ? "encoder" : "decoder";
500 AVCodec *codec;
501 if (c->codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
502 c->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
503 av_log(NULL, AV_LOG_ERROR, "%s '%s' is experimental and might produce bad "
504 "results.\nAdd '-strict experimental' if you want to use it.\n",
505 codec_string, c->codec->name);
506 codec = encoder ? avcodec_find_encoder(c->codec->id) : avcodec_find_decoder(c->codec->id);
507 if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
508 av_log(NULL, AV_LOG_ERROR, "Or use the non experimental %s '%s'.\n",
509 codec_string, codec->name);
510 exit_program(1);
511 }
512 }
513
514 /* similar to ff_dynarray_add() and av_fast_realloc() */
515 static void *grow_array(void *array, int elem_size, int *size, int new_size)
516 {
517 if (new_size >= INT_MAX / elem_size) {
518 fprintf(stderr, "Array too big.\n");
519 exit_program(1);
520 }
521 if (*size < new_size) {
522 uint8_t *tmp = av_realloc(array, new_size*elem_size);
523 if (!tmp) {
524 fprintf(stderr, "Could not alloc buffer.\n");
525 exit_program(1);
526 }
527 memset(tmp + *size*elem_size, 0, (new_size-*size) * elem_size);
528 *size = new_size;
529 return tmp;
530 }
531 return array;
532 }
533
534 static void choose_sample_fmt(AVStream *st, AVCodec *codec)
535 {
536 if(codec && codec->sample_fmts){
537 const enum AVSampleFormat *p= codec->sample_fmts;
538 for(; *p!=-1; p++){
539 if(*p == st->codec->sample_fmt)
540 break;
541 }
542 if (*p == -1) {
543 av_log(NULL, AV_LOG_WARNING,
544 "Incompatible sample format '%s' for codec '%s', auto-selecting format '%s'\n",
545 av_get_sample_fmt_name(st->codec->sample_fmt),
546 codec->name,
547 av_get_sample_fmt_name(codec->sample_fmts[0]));
548 st->codec->sample_fmt = codec->sample_fmts[0];
549 }
550 }
551 }
552
553 /**
554 * Update the requested input sample format based on the output sample format.
555 * This is currently only used to request float output from decoders which
556 * support multiple sample formats, one of which is AV_SAMPLE_FMT_FLT.
557 * Ideally this will be removed in the future when decoders do not do format
558 * conversion and only output in their native format.
559 */
560 static void update_sample_fmt(AVCodecContext *dec, AVCodec *dec_codec,
561 AVCodecContext *enc)
562 {
563 /* if sample formats match or a decoder sample format has already been
564 requested, just return */
565 if (enc->sample_fmt == dec->sample_fmt ||
566 dec->request_sample_fmt > AV_SAMPLE_FMT_NONE)
567 return;
568
569 /* if decoder supports more than one output format */
570 if (dec_codec && dec_codec->sample_fmts &&
571 dec_codec->sample_fmts[0] != AV_SAMPLE_FMT_NONE &&
572 dec_codec->sample_fmts[1] != AV_SAMPLE_FMT_NONE) {
573 const enum AVSampleFormat *p;
574 int min_dec = -1, min_inc = -1;
575
576 /* find a matching sample format in the encoder */
577 for (p = dec_codec->sample_fmts; *p != AV_SAMPLE_FMT_NONE; p++) {
578 if (*p == enc->sample_fmt) {
579 dec->request_sample_fmt = *p;
580 return;
581 } else if (*p > enc->sample_fmt) {
582 min_inc = FFMIN(min_inc, *p - enc->sample_fmt);
583 } else
584 min_dec = FFMIN(min_dec, enc->sample_fmt - *p);
585 }
586
587 /* if none match, provide the one that matches quality closest */
588 dec->request_sample_fmt = min_inc > 0 ? enc->sample_fmt + min_inc :
589 enc->sample_fmt - min_dec;
590 }
591 }
592
593 static void choose_sample_rate(AVStream *st, AVCodec *codec)
594 {
595 if(codec && codec->supported_samplerates){
596 const int *p= codec->supported_samplerates;
597 int best=0;
598 int best_dist=INT_MAX;
599 for(; *p; p++){
600 int dist= abs(st->codec->sample_rate - *p);
601 if(dist < best_dist){
602 best_dist= dist;
603 best= *p;
604 }
605 }
606 if(best_dist){
607 av_log(st->codec, AV_LOG_WARNING, "Requested sampling rate unsupported using closest supported (%d)\n", best);
608 }
609 st->codec->sample_rate= best;
610 }
611 }
612
613 static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
614 {
615 if(codec && codec->pix_fmts){
616 const enum PixelFormat *p= codec->pix_fmts;
617 if(st->codec->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL){
618 if(st->codec->codec_id==CODEC_ID_MJPEG){
619 p= (const enum PixelFormat[]){PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_NONE};
620 }else if(st->codec->codec_id==CODEC_ID_LJPEG){
621 p= (const enum PixelFormat[]){PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUVJ444P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_YUV444P, PIX_FMT_BGRA, PIX_FMT_NONE};
622 }
623 }
624 for(; *p!=-1; p++){
625 if(*p == st->codec->pix_fmt)
626 break;
627 }
628 if (*p == -1) {
629 if(st->codec->pix_fmt != PIX_FMT_NONE)
630 av_log(NULL, AV_LOG_WARNING,
631 "Incompatible pixel format '%s' for codec '%s', auto-selecting format '%s'\n",
632 av_pix_fmt_descriptors[st->codec->pix_fmt].name,
633 codec->name,
634 av_pix_fmt_descriptors[codec->pix_fmts[0]].name);
635 st->codec->pix_fmt = codec->pix_fmts[0];
636 }
637 }
638 }
639
640 static double
641 get_sync_ipts(const OutputStream *ost)
642 {
643 const InputStream *ist = ost->sync_ist;
644 return (double)(ist->pts - start_time)/AV_TIME_BASE;
645 }
646
647 static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
648 int ret;
649
650 while(bsfc){
651 AVPacket new_pkt= *pkt;
652 int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
653 &new_pkt.data, &new_pkt.size,
654 pkt->data, pkt->size,
655 pkt->flags & AV_PKT_FLAG_KEY);
656 if(a>0){
657 av_free_packet(pkt);
658 new_pkt.destruct= av_destruct_packet;
659 } else if(a<0){
660 fprintf(stderr, "%s failed for stream %d, codec %s",
661 bsfc->filter->name, pkt->stream_index,
662 avctx->codec ? avctx->codec->name : "copy");
663 print_error("", a);
664 if (exit_on_error)
665 exit_program(1);
666 }
667 *pkt= new_pkt;
668
669 bsfc= bsfc->next;
670 }
671
672 ret= av_interleaved_write_frame(s, pkt);
673 if(ret < 0){
674 print_error("av_interleaved_write_frame()", ret);
675 exit_program(1);
676 }
677 }
678
679 #define MAX_AUDIO_PACKET_SIZE (128 * 1024)
680
681 static void do_audio_out(AVFormatContext *s,
682 OutputStream *ost,
683 InputStream *ist,
684 unsigned char *buf, int size)
685 {
686 uint8_t *buftmp;
687 int64_t audio_out_size, audio_buf_size;
688 int64_t allocated_for_size= size;
689
690 int size_out, frame_bytes, ret, resample_changed;
691 AVCodecContext *enc= ost->st->codec;
692 AVCodecContext *dec= ist->st->codec;
693 int osize = av_get_bytes_per_sample(enc->sample_fmt);
694 int isize = av_get_bytes_per_sample(dec->sample_fmt);
695 const int coded_bps = av_get_bits_per_sample(enc->codec->id);
696
697 need_realloc:
698 audio_buf_size= (allocated_for_size + isize*dec->channels - 1) / (isize*dec->channels);
699 audio_buf_size= (audio_buf_size*enc->sample_rate + dec->sample_rate) / dec->sample_rate;
700 audio_buf_size= audio_buf_size*2 + 10000; //safety factors for the deprecated resampling API
701 audio_buf_size= FFMAX(audio_buf_size, enc->frame_size);
702 audio_buf_size*= osize*enc->channels;
703
704 audio_out_size= FFMAX(audio_buf_size, enc->frame_size * osize * enc->channels);
705 if(coded_bps > 8*osize)
706 audio_out_size= audio_out_size * coded_bps / (8*osize);
707 audio_out_size += FF_MIN_BUFFER_SIZE;
708
709 if(audio_out_size > INT_MAX || audio_buf_size > INT_MAX){
710 fprintf(stderr, "Buffer sizes too large\n");
711 exit_program(1);
712 }
713
714 av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
715 av_fast_malloc(&audio_out, &allocated_audio_out_size, audio_out_size);
716 if (!audio_buf || !audio_out){
717 fprintf(stderr, "Out of memory in do_audio_out\n");
718 exit_program(1);
719 }
720
721 if (enc->channels != dec->channels || enc->sample_rate != dec->sample_rate)
722 ost->audio_resample = 1;
723
724 resample_changed = ost->resample_sample_fmt != dec->sample_fmt ||
725 ost->resample_channels != dec->channels ||
726 ost->resample_sample_rate != dec->sample_rate;
727
728 if ((ost->audio_resample && !ost->resample) || resample_changed) {
729 if (resample_changed) {
730 av_log(NULL, AV_LOG_INFO, "Input stream #%d.%d frame changed from rate:%d fmt:%s ch:%d to rate:%d fmt:%s ch:%d\n",
731 ist->file_index, ist->st->index,
732 ost->resample_sample_rate, av_get_sample_fmt_name(ost->resample_sample_fmt), ost->resample_channels,
733 dec->sample_rate, av_get_sample_fmt_name(dec->sample_fmt), dec->channels);
734 ost->resample_sample_fmt = dec->sample_fmt;
735 ost->resample_channels = dec->channels;
736 ost->resample_sample_rate = dec->sample_rate;
737 if (ost->resample)
738 audio_resample_close(ost->resample);
739 }
740 /* if audio_sync_method is >1 the resampler is needed for audio drift compensation */
741 if (audio_sync_method <= 1 &&
742 ost->resample_sample_fmt == enc->sample_fmt &&
743 ost->resample_channels == enc->channels &&
744 ost->resample_sample_rate == enc->sample_rate) {
745 ost->resample = NULL;
746 ost->audio_resample = 0;
747 } else if (ost->audio_resample) {
748 if (dec->sample_fmt != AV_SAMPLE_FMT_S16)
749 fprintf(stderr, "Warning, using s16 intermediate sample format for resampling\n");
750 ost->resample = av_audio_resample_init(enc->channels, dec->channels,
751 enc->sample_rate, dec->sample_rate,
752 enc->sample_fmt, dec->sample_fmt,
753 16, 10, 0, 0.8);
754 if (!ost->resample) {
755 fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
756 dec->channels, dec->sample_rate,
757 enc->channels, enc->sample_rate);
758 exit_program(1);
759 }
760 }
761 }
762
763 #define MAKE_SFMT_PAIR(a,b) ((a)+AV_SAMPLE_FMT_NB*(b))
764 if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt &&
765 MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt)!=ost->reformat_pair) {
766 if (ost->reformat_ctx)
767 av_audio_convert_free(ost->reformat_ctx);
768 ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
769 dec->sample_fmt, 1, NULL, 0);
770 if (!ost->reformat_ctx) {
771 fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
772 av_get_sample_fmt_name(dec->sample_fmt),
773 av_get_sample_fmt_name(enc->sample_fmt));
774 exit_program(1);
775 }
776 ost->reformat_pair=MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
777 }
778
779 if(audio_sync_method){
780 double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts
781 - av_fifo_size(ost->fifo)/(enc->channels * 2);
782 double idelta= delta*dec->sample_rate / enc->sample_rate;
783 int byte_delta= ((int)idelta)*2*dec->channels;
784
785 //FIXME resample delay
786 if(fabs(delta) > 50){
787 if(ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate){
788 if(byte_delta < 0){
789 byte_delta= FFMAX(byte_delta, -size);
790 size += byte_delta;
791 buf -= byte_delta;
792 if(verbose > 2)
793 fprintf(stderr, "discarding %d audio samples\n", (int)-delta);
794 if(!size)
795 return;
796 ist->is_start=0;
797 }else{
798 static uint8_t *input_tmp= NULL;
799 input_tmp= av_realloc(input_tmp, byte_delta + size);
800
801 if(byte_delta > allocated_for_size - size){
802 allocated_for_size= byte_delta + (int64_t)size;
803 goto need_realloc;
804 }
805 ist->is_start=0;
806
807 memset(input_tmp, 0, byte_delta);
808 memcpy(input_tmp + byte_delta, buf, size);
809 buf= input_tmp;
810 size += byte_delta;
811 if(verbose > 2)
812 fprintf(stderr, "adding %d audio samples of silence\n", (int)delta);
813 }
814 }else if(audio_sync_method>1){
815 int comp= av_clip(delta, -audio_sync_method, audio_sync_method);
816 av_assert0(ost->audio_resample);
817 if(verbose > 2)
818 fprintf(stderr, "compensating audio timestamp drift:%f compensation:%d in:%d\n", delta, comp, enc->sample_rate);
819 // fprintf(stderr, "drift:%f len:%d opts:%"PRId64" ipts:%"PRId64" fifo:%d\n", delta, -1, ost->sync_opts, (int64_t)(get_sync_ipts(ost) * enc->sample_rate), av_fifo_size(ost->fifo)/(ost->st->codec->channels * 2));
820 av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
821 }
822 }
823 }else
824 ost->sync_opts= lrintf(get_sync_ipts(ost) * enc->sample_rate)
825 - av_fifo_size(ost->fifo)/(enc->channels * 2); //FIXME wrong
826
827 if (ost->audio_resample) {
828 buftmp = audio_buf;
829 size_out = audio_resample(ost->resample,
830 (short *)buftmp, (short *)buf,
831 size / (dec->channels * isize));
832 size_out = size_out * enc->channels * osize;
833 } else {
834 buftmp = buf;
835 size_out = size;
836 }
837
838 if (!ost->audio_resample && dec->sample_fmt!=enc->sample_fmt) {
839 const void *ibuf[6]= {buftmp};
840 void *obuf[6]= {audio_buf};
841 int istride[6]= {isize};
842 int ostride[6]= {osize};
843 int len= size_out/istride[0];
844 if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
845 printf("av_audio_convert() failed\n");
846 if (exit_on_error)
847 exit_program(1);
848 return;
849 }
850 buftmp = audio_buf;
851 size_out = len*osize;
852 }
853
854 /* now encode as many frames as possible */
855 if (enc->frame_size > 1) {
856 /* output resampled raw samples */
857 if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
858 fprintf(stderr, "av_fifo_realloc2() failed\n");
859 exit_program(1);
860 }
861 av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
862
863 frame_bytes = enc->frame_size * osize * enc->channels;
864
865 while (av_fifo_size(ost->fifo) >= frame_bytes) {
866 AVPacket pkt;
867 av_init_packet(&pkt);
868
869 av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
870
871 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
872
873 ret = avcodec_encode_audio(enc, audio_out, audio_out_size,
874 (short *)audio_buf);
875 if (ret < 0) {
876 fprintf(stderr, "Audio encoding failed\n");
877 exit_program(1);
878 }
879 audio_size += ret;
880 pkt.stream_index= ost->index;
881 pkt.data= audio_out;
882 pkt.size= ret;
883 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
884 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
885 pkt.flags |= AV_PKT_FLAG_KEY;
886 write_frame(s, &pkt, enc, ost->bitstream_filters);
887
888 ost->sync_opts += enc->frame_size;
889 }
890 } else {
891 AVPacket pkt;
892 av_init_packet(&pkt);
893
894 ost->sync_opts += size_out / (osize * enc->channels);
895
896 /* output a pcm frame */
897 /* determine the size of the coded buffer */
898 size_out /= osize;
899 if (coded_bps)
900 size_out = size_out*coded_bps/8;
901
902 if(size_out > audio_out_size){
903 fprintf(stderr, "Internal error, buffer size too small\n");
904 exit_program(1);
905 }
906
907 //FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
908 ret = avcodec_encode_audio(enc, audio_out, size_out,
909 (short *)buftmp);
910 if (ret < 0) {
911 fprintf(stderr, "Audio encoding failed\n");
912 exit_program(1);
913 }
914 audio_size += ret;
915 pkt.stream_index= ost->index;
916 pkt.data= audio_out;
917 pkt.size= ret;
918 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
919 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
920 pkt.flags |= AV_PKT_FLAG_KEY;
921 write_frame(s, &pkt, enc, ost->bitstream_filters);
922 }
923 }
924
925 static void pre_process_video_frame(InputStream *ist, AVPicture *picture, void **bufp)
926 {
927 AVCodecContext *dec;
928 AVPicture *picture2;
929 AVPicture picture_tmp;
930 uint8_t *buf = 0;
931
932 dec = ist->st->codec;
933
934 /* deinterlace : must be done before any resize */
935 if (do_deinterlace) {
936 int size;
937
938 /* create temporary picture */
939 size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
940 buf = av_malloc(size);
941 if (!buf)
942 return;
943
944 picture2 = &picture_tmp;
945 avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
946
947 if(avpicture_deinterlace(picture2, picture,
948 dec->pix_fmt, dec->width, dec->height) < 0) {
949 /* if error, do not deinterlace */
950 fprintf(stderr, "Deinterlacing failed\n");
951 av_free(buf);
952 buf = NULL;
953 picture2 = picture;
954 }
955 } else {
956 picture2 = picture;
957 }
958
959 if (picture != picture2)
960 *picture = *picture2;
961 *bufp = buf;
962 }
963
964 /* we begin to correct av delay at this threshold */
965 #define AV_DELAY_MAX 0.100
966
967 static void do_subtitle_out(AVFormatContext *s,
968 OutputStream *ost,
969 InputStream *ist,
970 AVSubtitle *sub,
971 int64_t pts)
972 {
973 static uint8_t *subtitle_out = NULL;
974 int subtitle_out_max_size = 1024 * 1024;
975 int subtitle_out_size, nb, i;
976 AVCodecContext *enc;
977 AVPacket pkt;
978
979 if (pts == AV_NOPTS_VALUE) {
980 fprintf(stderr, "Subtitle packets must have a pts\n");
981 if (exit_on_error)
982 exit_program(1);
983 return;
984 }
985
986 enc = ost->st->codec;
987
988 if (!subtitle_out) {
989 subtitle_out = av_malloc(subtitle_out_max_size);
990 }
991
992 /* Note: DVB subtitle need one packet to draw them and one other
993 packet to clear them */
994 /* XXX: signal it in the codec context ? */
995 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
996 nb = 2;
997 else
998 nb = 1;
999
1000 for(i = 0; i < nb; i++) {
1001 sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
1002 // start_display_time is required to be 0
1003 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){1, 1000}, AV_TIME_BASE_Q);
1004 sub->end_display_time -= sub->start_display_time;
1005 sub->start_display_time = 0;
1006 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
1007 subtitle_out_max_size, sub);
1008 if (subtitle_out_size < 0) {
1009 fprintf(stderr, "Subtitle encoding failed\n");
1010 exit_program(1);
1011 }
1012
1013 av_init_packet(&pkt);
1014 pkt.stream_index = ost->index;
1015 pkt.data = subtitle_out;
1016 pkt.size = subtitle_out_size;
1017 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
1018 if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
1019 /* XXX: the pts correction is handled here. Maybe handling
1020 it in the codec would be better */
1021 if (i == 0)
1022 pkt.pts += 90 * sub->start_display_time;
1023 else
1024 pkt.pts += 90 * sub->end_display_time;
1025 }
1026 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1027 }
1028 }
1029
1030 static int bit_buffer_size= 1024*256;
1031 static uint8_t *bit_buffer= NULL;
1032
1033 static void do_video_out(AVFormatContext *s,
1034 OutputStream *ost,
1035 InputStream *ist,
1036 AVFrame *in_picture,
1037 int *frame_size, float quality)
1038 {
1039 int nb_frames, i, ret, resample_changed;
1040 AVFrame *final_picture, *formatted_picture;
1041 AVCodecContext *enc, *dec;
1042 double sync_ipts;
1043
1044 enc = ost->st->codec;
1045 dec = ist->st->codec;
1046
1047 sync_ipts = get_sync_ipts(ost) / av_q2d(enc->time_base);
1048
1049 /* by default, we output a single frame */
1050 nb_frames = 1;
1051
1052 *frame_size = 0;
1053
1054 if(video_sync_method){
1055 double vdelta = sync_ipts - ost->sync_opts;
1056 //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
1057 if (vdelta < -1.1)
1058 nb_frames = 0;
1059 else if (video_sync_method == 2 || (video_sync_method<0 && (s->oformat->flags & AVFMT_VARIABLE_FPS))){
1060 if(vdelta<=-0.6){
1061 nb_frames=0;
1062 }else if(vdelta>0.6)
1063 ost->sync_opts= lrintf(sync_ipts);
1064 }else if (vdelta > 1.1)
1065 nb_frames = lrintf(vdelta);
1066 //fprintf(stderr, "vdelta:%f, ost->sync_opts:%"PRId64", ost->sync_ipts:%f nb_frames:%d\n", vdelta, ost->sync_opts, get_sync_ipts(ost), nb_frames);
1067 if (nb_frames == 0){
1068 ++nb_frames_drop;
1069 if (verbose>2)
1070 fprintf(stderr, "*** drop!\n");
1071 }else if (nb_frames > 1) {
1072 nb_frames_dup += nb_frames - 1;
1073 if (verbose>2)
1074 fprintf(stderr, "*** %d dup!\n", nb_frames-1);
1075 }
1076 }else
1077 ost->sync_opts= lrintf(sync_ipts);
1078
1079 nb_frames= FFMIN(nb_frames, max_frames[AVMEDIA_TYPE_VIDEO] - ost->frame_number);
1080 if (nb_frames <= 0)
1081 return;
1082
1083 formatted_picture = in_picture;
1084 final_picture = formatted_picture;
1085
1086 resample_changed = ost->resample_width != dec->width ||
1087 ost->resample_height != dec->height ||
1088 ost->resample_pix_fmt != dec->pix_fmt;
1089
1090 if (resample_changed) {
1091 av_log(NULL, AV_LOG_INFO,
1092 "Input stream #%d.%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1093 ist->file_index, ist->st->index,
1094 ost->resample_width, ost->resample_height, av_get_pix_fmt_name(ost->resample_pix_fmt),
1095 dec->width , dec->height , av_get_pix_fmt_name(dec->pix_fmt));
1096 if(!ost->video_resample)
1097 ost->video_resample = 1;
1098 }
1099
1100 #if !CONFIG_AVFILTER
1101 if (ost->video_resample) {
1102 final_picture = &ost->pict_tmp;
1103 if (resample_changed) {
1104 /* initialize a new scaler context */
1105 sws_freeContext(ost->img_resample_ctx);
1106 ost->img_resample_ctx = sws_getContext(
1107 ist->st->codec->width,
1108 ist->st->codec->height,
1109 ist->st->codec->pix_fmt,
1110 ost->st->codec->width,
1111 ost->st->codec->height,
1112 ost->st->codec->pix_fmt,
1113 ost->sws_flags, NULL, NULL, NULL);
1114 if (ost->img_resample_ctx == NULL) {
1115 fprintf(stderr, "Cannot get resampling context\n");
1116 exit_program(1);
1117 }
1118 }
1119 sws_scale(ost->img_resample_ctx, formatted_picture->data, formatted_picture->linesize,
1120 0, ost->resample_height, final_picture->data, final_picture->linesize);
1121 }
1122 #else
1123 if (resample_changed) {
1124 avfilter_graph_free(&ost->graph);
1125 if (configure_video_filters(ist, ost)) {
1126 fprintf(stderr, "Error reinitialising filters!\n");
1127 exit_program(1);
1128 }
1129 }
1130 #endif
1131 if (resample_changed) {
1132 ost->resample_width = dec->width;
1133 ost->resample_height = dec->height;
1134 ost->resample_pix_fmt = dec->pix_fmt;
1135 }
1136
1137 /* duplicates frame if needed */
1138 for(i=0;i<nb_frames;i++) {
1139 AVPacket pkt;
1140 av_init_packet(&pkt);
1141 pkt.stream_index= ost->index;
1142
1143 if (s->oformat->flags & AVFMT_RAWPICTURE) {
1144 /* raw pictures are written as AVPicture structure to
1145 avoid any copies. We support temorarily the older
1146 method. */
1147 AVFrame* old_frame = enc->coded_frame;
1148 enc->coded_frame = dec->coded_frame; //FIXME/XXX remove this hack
1149 pkt.data= (uint8_t *)final_picture;
1150 pkt.size= sizeof(AVPicture);
1151 pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
1152 pkt.flags |= AV_PKT_FLAG_KEY;
1153
1154 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1155 enc->coded_frame = old_frame;
1156 } else {
1157 AVFrame big_picture;
1158
1159 big_picture= *final_picture;
1160 /* better than nothing: use input picture interlaced
1161 settings */
1162 big_picture.interlaced_frame = in_picture->interlaced_frame;
1163 if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
1164 if(top_field_first == -1)
1165 big_picture.top_field_first = in_picture->top_field_first;
1166 else
1167 big_picture.top_field_first = top_field_first;
1168 }
1169
1170 /* handles same_quant here. This is not correct because it may
1171 not be a global option */
1172 big_picture.quality = quality;
1173 if(!me_threshold)
1174 big_picture.pict_type = 0;
1175 // big_picture.pts = AV_NOPTS_VALUE;
1176 big_picture.pts= ost->sync_opts;
1177 // big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
1178 //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
1179 if (ost->forced_kf_index < ost->forced_kf_count &&
1180 big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
1181 big_picture.pict_type = AV_PICTURE_TYPE_I;
1182 ost->forced_kf_index++;
1183 }
1184 ret = avcodec_encode_video(enc,
1185 bit_buffer, bit_buffer_size,
1186 &big_picture);
1187 if (ret < 0) {
1188 fprintf(stderr, "Video encoding failed\n");
1189 exit_program(1);
1190 }
1191
1192 if(ret>0){
1193 pkt.data= bit_buffer;
1194 pkt.size= ret;
1195 if(enc->coded_frame->pts != AV_NOPTS_VALUE)
1196 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1197 /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
1198 pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
1199 pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
1200
1201 if(enc->coded_frame->key_frame)
1202 pkt.flags |= AV_PKT_FLAG_KEY;
1203 write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters);
1204 *frame_size = ret;
1205 video_size += ret;
1206 //fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
1207 // enc->frame_number-1, ret, enc->pict_type);
1208 /* if two pass, output log */
1209 if (ost->logfile && enc->stats_out) {
1210 fprintf(ost->logfile, "%s", enc->stats_out);
1211 }
1212 }
1213 }
1214 ost->sync_opts++;
1215 ost->frame_number++;
1216 }
1217 }
1218
1219 static double psnr(double d){
1220 return -10.0*log(d)/log(10.0);
1221 }
1222
1223 static void do_video_stats(AVFormatContext *os, OutputStream *ost,
1224 int frame_size)
1225 {
1226 AVCodecContext *enc;
1227 int frame_number;
1228 double ti1, bitrate, avg_bitrate;
1229
1230 /* this is executed just the first time do_video_stats is called */
1231 if (!vstats_file) {
1232 vstats_file = fopen(vstats_filename, "w");
1233 if (!vstats_file) {
1234 perror("fopen");
1235 exit_program(1);
1236 }
1237 }
1238
1239 enc = ost->st->codec;
1240 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1241 frame_number = ost->frame_number;
1242 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality/(float)FF_QP2LAMBDA);
1243 if (enc->flags&CODEC_FLAG_PSNR)
1244 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0]/(enc->width*enc->height*255.0*255.0)));
1245
1246 fprintf(vstats_file,"f_size= %6d ", frame_size);
1247 /* compute pts value */
1248 ti1 = ost->sync_opts * av_q2d(enc->time_base);
1249 if (ti1 < 0.01)
1250 ti1 = 0.01;
1251
1252 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
1253 avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
1254 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
1255 (double)video_size / 1024, ti1, bitrate, avg_bitrate);
1256 fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
1257 }
1258 }
1259
1260 static void print_report(AVFormatContext **output_files,
1261 OutputStream **ost_table, int nb_ostreams,
1262 int is_last_report)
1263 {
1264 char buf[1024];
1265 OutputStream *ost;
1266 AVFormatContext *oc;
1267 int64_t total_size;
1268 AVCodecContext *enc;
1269 int frame_number, vid, i;
1270 double bitrate, ti1, pts;
1271 static int64_t last_time = -1;
1272 static int qp_histogram[52];
1273
1274 if (!is_last_report) {
1275 int64_t cur_time;
1276 /* display the report every 0.5 seconds */
1277 cur_time = av_gettime();
1278 if (last_time == -1) {
1279 last_time = cur_time;
1280 return;
1281 }
1282 if ((cur_time - last_time) < 500000)
1283 return;
1284 last_time = cur_time;
1285 }
1286
1287
1288 oc = output_files[0];
1289
1290 total_size = avio_size(oc->pb);
1291 if(total_size<0) // FIXME improve avio_size() so it works with non seekable output too
1292 total_size= avio_tell(oc->pb);
1293
1294 buf[0] = '\0';
1295 ti1 = 1e10;
1296 vid = 0;
1297 for(i=0;i<nb_ostreams;i++) {
1298 float q = -1;
1299 ost = ost_table[i];
1300 enc = ost->st->codec;
1301 if (!ost->st->stream_copy && enc->coded_frame)
1302 q = enc->coded_frame->quality/(float)FF_QP2LAMBDA;
1303 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1304 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
1305 }
1306 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1307 float t = (av_gettime()-timer_start) / 1000000.0;
1308
1309 frame_number = ost->frame_number;
1310 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
1311 frame_number, (t>1)?(int)(frame_number/t+0.5) : 0, q);
1312 if(is_last_report)
1313 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
1314 if(qp_hist){
1315 int j;
1316 int qp = lrintf(q);
1317 if(qp>=0 && qp<FF_ARRAY_ELEMS(qp_histogram))
1318 qp_histogram[qp]++;
1319 for(j=0; j<32; j++)
1320 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j]+1)/log(2)));
1321 }
1322 if (enc->flags&CODEC_FLAG_PSNR){
1323 int j;
1324 double error, error_sum=0;
1325 double scale, scale_sum=0;
1326 char type[3]= {'Y','U','V'};
1327 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
1328 for(j=0; j<3; j++){
1329 if(is_last_report){
1330 error= enc->error[j];
1331 scale= enc->width*enc->height*255.0*255.0*frame_number;
1332 }else{
1333 error= enc->coded_frame->error[j];
1334 scale= enc->width*enc->height*255.0*255.0;
1335 }
1336 if(j) scale/=4;
1337 error_sum += error;
1338 scale_sum += scale;
1339 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error/scale));
1340 }
1341 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum/scale_sum));
1342 }
1343 vid = 1;
1344 }
1345 /* compute min output value */
1346 pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
1347 if ((pts < ti1) && (pts > 0))
1348 ti1 = pts;
1349 }
1350 if (ti1 < 0.01)
1351 ti1 = 0.01;
1352
1353 if (verbose > 0 || is_last_report) {
1354 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1355
1356 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1357 "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1358 (double)total_size / 1024, ti1, bitrate);
1359
1360 if (nb_frames_dup || nb_frames_drop)
1361 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
1362 nb_frames_dup, nb_frames_drop);
1363
1364 if (verbose >= 0)
1365 fprintf(stderr, "%s \r", buf);
1366
1367 fflush(stderr);
1368 }
1369
1370 if (is_last_report && verbose >= 0){
1371 int64_t raw= audio_size + video_size + extra_size;
1372 fprintf(stderr, "\n");
1373 fprintf(stderr, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
1374 video_size/1024.0,
1375 audio_size/1024.0,
1376 extra_size/1024.0,
1377 100.0*(total_size - raw)/raw
1378 );
1379 }
1380 }
1381
1382 static void generate_silence(uint8_t* buf, enum AVSampleFormat sample_fmt, size_t size)
1383 {
1384 int fill_char = 0x00;
1385 if (sample_fmt == AV_SAMPLE_FMT_U8)
1386 fill_char = 0x80;
1387 memset(buf, fill_char, size);
1388 }
1389
1390 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1391 static int output_packet(InputStream *ist, int ist_index,
1392 OutputStream **ost_table, int nb_ostreams,
1393 const AVPacket *pkt)
1394 {
1395 AVFormatContext *os;
1396 OutputStream *ost;
1397 int ret, i;
1398 int got_output;
1399 AVFrame picture;
1400 void *buffer_to_free = NULL;
1401 static unsigned int samples_size= 0;
1402 AVSubtitle subtitle, *subtitle_to_free;
1403 int64_t pkt_pts = AV_NOPTS_VALUE;
1404 #if CONFIG_AVFILTER
1405 int frame_available;
1406 #endif
1407 float quality;
1408
1409 AVPacket avpkt;
1410 int bps = av_get_bytes_per_sample(ist->st->codec->sample_fmt);
1411
1412 if(ist->next_pts == AV_NOPTS_VALUE)
1413 ist->next_pts= ist->pts;
1414
1415 if (pkt == NULL) {
1416 /* EOF handling */
1417 av_init_packet(&avpkt);
1418 avpkt.data = NULL;
1419 avpkt.size = 0;
1420 goto handle_eof;
1421 } else {
1422 avpkt = *pkt;
1423 }
1424
1425 if(pkt->dts != AV_NOPTS_VALUE)
1426 ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1427 if(pkt->pts != AV_NOPTS_VALUE)
1428 pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
1429
1430 //while we have more to decode or while the decoder did output something on EOF
1431 while (avpkt.size > 0 || (!pkt && got_output)) {
1432 uint8_t *data_buf, *decoded_data_buf;
1433 int data_size, decoded_data_size;
1434 handle_eof:
1435 ist->pts= ist->next_pts;
1436
1437 if(avpkt.size && avpkt.size != pkt->size &&
1438 ((!ist->showed_multi_packet_warning && verbose>0) || verbose>1)){
1439 fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1440 ist->showed_multi_packet_warning=1;
1441 }
1442
1443 /* decode the packet if needed */
1444 decoded_data_buf = NULL; /* fail safe */
1445 decoded_data_size= 0;
1446 data_buf = avpkt.data;
1447 data_size = avpkt.size;
1448 subtitle_to_free = NULL;
1449 if (ist->decoding_needed) {
1450 switch(ist->st->codec->codec_type) {
1451 case AVMEDIA_TYPE_AUDIO:{
1452 if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {
1453 samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);
1454 av_free(samples);
1455 samples= av_malloc(samples_size);
1456 }
1457 decoded_data_size= samples_size;
1458 /* XXX: could avoid copy if PCM 16 bits with same
1459 endianness as CPU */
1460 ret = avcodec_decode_audio3(ist->st->codec, samples, &decoded_data_size,
1461 &avpkt);
1462 if (ret < 0)
1463 return ret;
1464 avpkt.data += ret;
1465 avpkt.size -= ret;
1466 data_size = ret;
1467 got_output = decoded_data_size > 0;
1468 /* Some bug in mpeg audio decoder gives */
1469 /* decoded_data_size < 0, it seems they are overflows */
1470 if (!got_output) {
1471 /* no audio frame */
1472 continue;
1473 }
1474 decoded_data_buf = (uint8_t *)samples;
1475 ist->next_pts += ((int64_t)AV_TIME_BASE/bps * decoded_data_size) /
1476 (ist->st->codec->sample_rate * ist->st->codec->channels);
1477 break;}
1478 case AVMEDIA_TYPE_VIDEO:
1479 decoded_data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
1480 /* XXX: allocate picture correctly */
1481 avcodec_get_frame_defaults(&picture);
1482 avpkt.pts = pkt_pts;
1483 avpkt.dts = ist->pts;
1484 pkt_pts = AV_NOPTS_VALUE;
1485
1486 ret = avcodec_decode_video2(ist->st->codec,
1487 &picture, &got_output, &avpkt);
1488 quality = same_quant ? picture.quality : 0;
1489 if (ret < 0)
1490 return ret;
1491 if (!got_output) {
1492 /* no picture yet */
1493 goto discard_packet;
1494 }
1495 ist->next_pts = ist->pts = guess_correct_pts(&ist->pts_ctx, picture.pkt_pts, picture.pkt_dts);
1496 if (ist->st->codec->time_base.num != 0) {
1497 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1498 ist->next_pts += ((int64_t)AV_TIME_BASE *
1499 ist->st->codec->time_base.num * ticks) /
1500 ist->st->codec->time_base.den;
1501 }
1502 avpkt.size = 0;
1503 buffer_to_free = NULL;
1504 pre_process_video_frame(ist, (AVPicture *)&picture, &buffer_to_free);
1505 break;
1506 case AVMEDIA_TYPE_SUBTITLE:
1507 ret = avcodec_decode_subtitle2(ist->st->codec,
1508 &subtitle, &got_output, &avpkt);
1509 if (ret < 0)
1510 return ret;
1511 if (!got_output) {
1512 goto discard_packet;
1513 }
1514 subtitle_to_free = &subtitle;
1515 avpkt.size = 0;
1516 break;
1517 default:
1518 return -1;
1519 }
1520 } else {
1521 switch(ist->st->codec->codec_type) {
1522 case AVMEDIA_TYPE_AUDIO:
1523 ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1524 ist->st->codec->sample_rate;
1525 break;
1526 case AVMEDIA_TYPE_VIDEO:
1527 if (ist->st->codec->time_base.num != 0) {
1528 int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
1529 ist->next_pts += ((int64_t)AV_TIME_BASE *
1530 ist->st->codec->time_base.num * ticks) /
1531 ist->st->codec->time_base.den;
1532 }
1533 break;
1534 }
1535 ret = avpkt.size;
1536 avpkt.size = 0;
1537 }
1538
1539 #if CONFIG_AVFILTER
1540 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1541 for (i = 0; i < nb_ostreams; i++) {
1542 ost = ost_table[i];
1543 if (ost->input_video_filter && ost->source_index == ist_index) {
1544 AVRational sar;
1545 if (ist->st->sample_aspect_ratio.num)
1546 sar = ist->st->sample_aspect_ratio;
1547 else
1548 sar = ist->st->codec->sample_aspect_ratio;
1549 // add it to be filtered
1550 av_vsrc_buffer_add_frame(ost->input_video_filter, &picture,
1551 ist->pts,
1552 sar);
1553 }
1554 }
1555 }
1556 #endif
1557
1558 // preprocess audio (volume)
1559 if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
1560 if (audio_volume != 256) {
1561 short *volp;
1562 volp = samples;
1563 for(i=0;i<(decoded_data_size / sizeof(short));i++) {
1564 int v = ((*volp) * audio_volume + 128) >> 8;
1565 if (v < -32768) v = -32768;
1566 if (v > 32767) v = 32767;
1567 *volp++ = v;
1568 }
1569 }
1570 }
1571
1572 /* frame rate emulation */
1573 if (rate_emu) {
1574 int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
1575 int64_t now = av_gettime() - ist->start;
1576 if (pts > now)
1577 usleep(pts - now);
1578 }
1579 /* if output time reached then transcode raw format,
1580 encode packets and output them */
1581 if (start_time == 0 || ist->pts >= start_time)
1582 for(i=0;i<nb_ostreams;i++) {
1583 int frame_size;
1584
1585 ost = ost_table[i];
1586 if (ost->source_index == ist_index) {
1587 #if CONFIG_AVFILTER
1588 frame_available = ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO ||
1589 !ost->output_video_filter || avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1590 while (frame_available) {
1591 AVRational ist_pts_tb;
1592 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ost->output_video_filter)
1593 get_filtered_video_frame(ost->output_video_filter, &picture, &ost->picref, &ist_pts_tb);
1594 if (ost->picref)
1595 ist->pts = av_rescale_q(ost->picref->pts, ist_pts_tb, AV_TIME_BASE_Q);
1596 #endif
1597 os = output_files[ost->file_index];
1598
1599 /* set the input output pts pairs */
1600 //ost->sync_ipts = (double)(ist->pts + input_files[ist->file_index].ts_offset - start_time)/ AV_TIME_BASE;
1601
1602 if (ost->encoding_needed) {
1603 av_assert0(ist->decoding_needed);
1604 switch(ost->st->codec->codec_type) {
1605 case AVMEDIA_TYPE_AUDIO:
1606 do_audio_out(os, ost, ist, decoded_data_buf, decoded_data_size);
1607 break;
1608 case AVMEDIA_TYPE_VIDEO:
1609 #if CONFIG_AVFILTER
1610 if (ost->picref->video && !ost->frame_aspect_ratio)
1611 ost->st->codec->sample_aspect_ratio = ost->picref->video->pixel_aspect;
1612 #endif
1613 do_video_out(os, ost, ist, &picture, &frame_size,
1614 same_quant ? quality : ost->st->codec->global_quality);
1615 if (vstats_filename && frame_size)
1616 do_video_stats(os, ost, frame_size);
1617 break;
1618 case AVMEDIA_TYPE_SUBTITLE:
1619 do_subtitle_out(os, ost, ist, &subtitle,
1620 pkt->pts);
1621 break;
1622 default:
1623 abort();
1624 }
1625 } else {
1626 AVFrame avframe; //FIXME/XXX remove this
1627 AVPacket opkt;
1628 int64_t ost_tb_start_time= av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1629
1630 av_init_packet(&opkt);
1631
1632 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)
1633 #if !CONFIG_AVFILTER
1634 continue;
1635 #else
1636 goto cont;
1637 #endif
1638
1639 /* no reencoding needed : output the packet directly */
1640 /* force the input stream PTS */
1641
1642 avcodec_get_frame_defaults(&avframe);
1643 ost->st->codec->coded_frame= &avframe;
1644 avframe.key_frame = pkt->flags & AV_PKT_FLAG_KEY;
1645
1646 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1647 audio_size += data_size;
1648 else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
1649 video_size += data_size;
1650 ost->sync_opts++;
1651 }
1652
1653 opkt.stream_index= ost->index;
1654 if(pkt->pts != AV_NOPTS_VALUE)
1655 opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1656 else
1657 opkt.pts= AV_NOPTS_VALUE;
1658
1659 if (pkt->dts == AV_NOPTS_VALUE)
1660 opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
1661 else
1662 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1663 opkt.dts -= ost_tb_start_time;
1664
1665 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1666 opkt.flags= pkt->flags;
1667
1668 //FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1669 if( ost->st->codec->codec_id != CODEC_ID_H264
1670 && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
1671 && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
1672 ) {
1673 if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & AV_PKT_FLAG_KEY))
1674 opkt.destruct= av_destruct_packet;
1675 } else {
1676 opkt.data = data_buf;
1677 opkt.size = data_size;
1678 }
1679
1680 write_frame(os, &opkt, ost->st->codec, ost->bitstream_filters);
1681 ost->st->codec->frame_number++;
1682 ost->frame_number++;
1683 av_free_packet(&opkt);
1684 }
1685 #if CONFIG_AVFILTER
1686 cont:
1687 frame_available = (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) &&
1688 ost->output_video_filter && avfilter_poll_frame(ost->output_video_filter->inputs[0]);
1689 if (ost->picref)
1690 avfilter_unref_buffer(ost->picref);
1691 }
1692 #endif
1693 }
1694 }
1695
1696 av_free(buffer_to_free);
1697 /* XXX: allocate the subtitles in the codec ? */
1698 if (subtitle_to_free) {
1699 avsubtitle_free(subtitle_to_free);
1700 subtitle_to_free = NULL;
1701 }
1702 }
1703 discard_packet:
1704 if (pkt == NULL) {
1705 /* EOF handling */
1706
1707 for(i=0;i<nb_ostreams;i++) {
1708 ost = ost_table[i];
1709 if (ost->source_index == ist_index) {
1710 AVCodecContext *enc= ost->st->codec;
1711 os = output_files[ost->file_index];
1712
1713 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)
1714 continue;
1715 if(ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
1716 continue;
1717
1718 if (ost->encoding_needed) {
1719 for(;;) {
1720 AVPacket pkt;
1721 int fifo_bytes;
1722 av_init_packet(&pkt);
1723 pkt.stream_index= ost->index;
1724
1725 switch(ost->st->codec->codec_type) {
1726 case AVMEDIA_TYPE_AUDIO:
1727 fifo_bytes = av_fifo_size(ost->fifo);
1728 ret = 0;
1729 /* encode any samples remaining in fifo */
1730 if (fifo_bytes > 0) {
1731 int osize = av_get_bytes_per_sample(enc->sample_fmt);
1732 int fs_tmp = enc->frame_size;
1733
1734 av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
1735 if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
1736 enc->frame_size = fifo_bytes / (osize * enc->channels);
1737 } else { /* pad */
1738 int frame_bytes = enc->frame_size*osize*enc->channels;
1739 if (allocated_audio_buf_size < frame_bytes)
1740 exit_program(1);
1741 generate_silence(audio_buf+fifo_bytes, enc->sample_fmt, frame_bytes - fifo_bytes);
1742 }
1743
1744 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf);
1745 pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
1746 ost->st->time_base.num, enc->sample_rate);
1747 enc->frame_size = fs_tmp;
1748 }
1749 if(ret <= 0) {
1750 ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
1751 }
1752 if (ret < 0) {
1753 fprintf(stderr, "Audio encoding failed\n");
1754 exit_program(1);
1755 }
1756 audio_size += ret;
1757 pkt.flags |= AV_PKT_FLAG_KEY;
1758 break;
1759 case AVMEDIA_TYPE_VIDEO:
1760 ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
1761 if (ret < 0) {
1762 fprintf(stderr, "Video encoding failed\n");
1763 exit_program(1);
1764 }
1765 video_size += ret;
1766 if(enc->coded_frame && enc->coded_frame->key_frame)
1767 pkt.flags |= AV_PKT_FLAG_KEY;
1768 if (ost->logfile && enc->stats_out) {
1769 fprintf(ost->logfile, "%s", enc->stats_out);
1770 }
1771 break;
1772 default:
1773 ret=-1;
1774 }
1775
1776 if(ret<=0)
1777 break;
1778 pkt.data= bit_buffer;
1779 pkt.size= ret;
1780 if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
1781 pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
1782 write_frame(os, &pkt, ost->st->codec, ost->bitstream_filters);
1783 }
1784 }
1785 }
1786 }
1787 }
1788
1789 return 0;
1790 }
1791
1792 static void print_sdp(AVFormatContext **avc, int n)
1793 {
1794 char sdp[2048];
1795
1796 av_sdp_create(avc, n, sdp, sizeof(sdp));
1797 printf("SDP:\n%s\n", sdp);
1798 fflush(stdout);
1799 }
1800
1801 /*
1802 * The following code is the main loop of the file converter
1803 */
1804 static int transcode(AVFormatContext **output_files,
1805 int nb_output_files,
1806 InputFile *input_files,
1807 int nb_input_files)
1808 {
1809 int ret = 0, i, j, k, n, nb_ostreams = 0;
1810 AVFormatContext *is, *os;
1811 AVCodecContext *codec, *icodec;
1812 OutputStream *ost, **ost_table = NULL;
1813 InputStream *ist;
1814 char error[1024];
1815 int want_sdp = 1;
1816 uint8_t no_packet[MAX_FILES]={0};
1817 int no_packet_count=0;
1818
1819 if (rate_emu)
1820 for (i = 0; i < nb_input_streams; i++)
1821 input_streams[i].start = av_gettime();
1822
1823 /* output stream init */
1824 nb_ostreams = 0;
1825 for(i=0;i<nb_output_files;i++) {
1826 os = output_files[i];
1827 if (!os->nb_streams && !(os->oformat->flags & AVFMT_NOSTREAMS)) {
1828 av_dump_format(output_files[i], i, output_files[i]->filename, 1);
1829 fprintf(stderr, "Output file #%d does not contain any stream\n", i);
1830 ret = AVERROR(EINVAL);
1831 goto fail;
1832 }
1833 nb_ostreams += os->nb_streams;
1834 }
1835
1836 ost_table = av_mallocz(sizeof(OutputStream *) * nb_ostreams);
1837 if (!ost_table)
1838 goto fail;
1839 n = 0;
1840 for(k=0;k<nb_output_files;k++) {
1841 os = output_files[k];
1842 for (i = 0; i < os->nb_streams; i++, n++)
1843 ost_table[n] = output_streams_for_file[k][i];
1844 }
1845
1846 /* for each output stream, we compute the right encoding parameters */
1847 for(i=0;i<nb_ostreams;i++) {
1848 ost = ost_table[i];
1849 os = output_files[ost->file_index];
1850 ist = &input_streams[ost->source_index];
1851
1852 codec = ost->st->codec;
1853 icodec = ist->st->codec;
1854
1855 ost->st->disposition = ist->st->disposition;
1856 codec->bits_per_raw_sample= icodec->bits_per_raw_sample;
1857 codec->chroma_sample_location = icodec->chroma_sample_location;
1858
1859 if (ost->st->stream_copy) {
1860 uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
1861
1862 if (extra_size > INT_MAX)
1863 goto fail;
1864
1865 /* if stream_copy is selected, no need to decode or encode */
1866 codec->codec_id = icodec->codec_id;
1867 codec->codec_type = icodec->codec_type;
1868
1869 if(!codec->codec_tag){
1870 if( !os->oformat->codec_tag
1871 || av_codec_get_id (os->oformat->codec_tag, icodec->codec_tag) == codec->codec_id
1872 || av_codec_get_tag(os->oformat->codec_tag, icodec->codec_id) <= 0)
1873 codec->codec_tag = icodec->codec_tag;
1874 }
1875
1876 codec->bit_rate = icodec->bit_rate;
1877 codec->rc_max_rate = icodec->rc_max_rate;
1878 codec->rc_buffer_size = icodec->rc_buffer_size;
1879 codec->extradata= av_mallocz(extra_size);
1880 if (!codec->extradata)
1881 goto fail;
1882 memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
1883 codec->extradata_size= icodec->extradata_size;
1884 if(!copy_tb && av_q2d(icodec->time_base)*icodec->ticks_per_frame > av_q2d(ist->st->time_base) && av_q2d(ist->st->time_base) < 1.0/500){
1885 codec->time_base = icodec->time_base;
1886 codec->time_base.num *= icodec->ticks_per_frame;
1887 av_reduce(&codec->time_base.num, &codec->time_base.den,
1888 codec->time_base.num, codec->time_base.den, INT_MAX);
1889 }else
1890 codec->time_base = ist->st->time_base;
1891 switch(codec->codec_type) {
1892 case AVMEDIA_TYPE_AUDIO:
1893 if(audio_volume != 256) {
1894 fprintf(stderr,"-acodec copy and -vol are incompatible (frames are not decoded)\n");
1895 exit_program(1);
1896 }
1897 codec->channel_layout = icodec->channel_layout;
1898 codec->sample_rate = icodec->sample_rate;
1899 codec->channels = icodec->channels;
1900 codec->frame_size = icodec->frame_size;
1901 codec->audio_service_type = icodec->audio_service_type;
1902 codec->block_align= icodec->block_align;
1903 if(codec->block_align == 1 && codec->codec_id == CODEC_ID_MP3)
1904 codec->block_align= 0;
1905 if(codec->codec_id == CODEC_ID_AC3)
1906 codec->block_align= 0;
1907 break;
1908 case AVMEDIA_TYPE_VIDEO:
1909 codec->pix_fmt = icodec->pix_fmt;
1910 codec->width = icodec->width;
1911 codec->height = icodec->height;
1912 codec->has_b_frames = icodec->has_b_frames;
1913 if (!codec->sample_aspect_ratio.num) {
1914 codec->sample_aspect_ratio =
1915 ost->st->sample_aspect_ratio =
1916 ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
1917 ist->st->codec->sample_aspect_ratio.num ?
1918 ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
1919 }
1920 break;
1921 case AVMEDIA_TYPE_SUBTITLE:
1922 codec->width = icodec->width;
1923 codec->height = icodec->height;
1924 break;
1925 case AVMEDIA_TYPE_DATA:
1926 break;
1927 default:
1928 abort();
1929 }
1930 } else {
1931 if (!ost->enc)
1932 ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
1933 switch(codec->codec_type) {
1934 case AVMEDIA_TYPE_AUDIO:
1935 ost->fifo= av_fifo_alloc(1024);
1936 if(!ost->fifo)
1937 goto fail;
1938 ost->reformat_pair = MAKE_SFMT_PAIR(AV_SAMPLE_FMT_NONE,AV_SAMPLE_FMT_NONE);
1939 if (!codec->sample_rate) {
1940 codec->sample_rate = icodec->sample_rate;
1941 if (icodec->lowres)
1942 codec->sample_rate >>= icodec->lowres;
1943 }
1944 choose_sample_rate(ost->st, ost->enc);
1945 codec->time_base = (AVRational){1, codec->sample_rate};
1946 if (codec->sample_fmt == AV_SAMPLE_FMT_NONE)
1947 codec->sample_fmt = icodec->sample_fmt;
1948 choose_sample_fmt(ost->st, ost->enc);
1949 if (!codec->channels)
1950 codec->channels = icodec->channels;
1951 codec->channel_layout = icodec->channel_layout;
1952 if (av_get_channel_layout_nb_channels(codec->channel_layout) != codec->channels)
1953 codec->channel_layout = 0;
1954 ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
1955 icodec->request_channels = codec->channels;
1956 ist->decoding_needed = 1;
1957 ost->encoding_needed = 1;
1958 ost->resample_sample_fmt = icodec->sample_fmt;
1959 ost->resample_sample_rate = icodec->sample_rate;
1960 ost->resample_channels = icodec->channels;
1961 break;
1962 case AVMEDIA_TYPE_VIDEO:
1963 if (codec->pix_fmt == PIX_FMT_NONE)
1964 codec->pix_fmt = icodec->pix_fmt;
1965 choose_pixel_fmt(ost->st, ost->enc);
1966
1967 if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
1968 fprintf(stderr, "Video pixel format is unknown, stream cannot be encoded\n");
1969 exit_program(1);
1970 }
1971
1972 if (!codec->width || !codec->height) {
1973 codec->width = icodec->width;
1974 codec->height = icodec->height;
1975 }
1976
1977 ost->video_resample = codec->width != icodec->width ||
1978 codec->height != icodec->height ||
1979 codec->pix_fmt != icodec->pix_fmt;
1980 if (ost->video_resample) {
1981 #if !CONFIG_AVFILTER
1982 avcodec_get_frame_defaults(&ost->pict_tmp);
1983 if(avpicture_alloc((AVPicture*)&ost->pict_tmp, codec->pix_fmt,
1984 codec->width, codec->height)) {
1985 fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
1986 exit_program(1);
1987 }
1988 ost->img_resample_ctx = sws_getContext(
1989 icodec->width,
1990 icodec->height,
1991 icodec->pix_fmt,
1992 codec->width,
1993 codec->height,
1994 codec->pix_fmt,
1995 ost->sws_flags, NULL, NULL, NULL);
1996 if (ost->img_resample_ctx == NULL) {
1997 fprintf(stderr, "Cannot get resampling context\n");
1998 exit_program(1);
1999 }
2000 #endif
2001 codec->bits_per_raw_sample= 0;
2002 }
2003
2004 ost->resample_height = icodec->height;
2005 ost->resample_width = icodec->width;
2006 ost->resample_pix_fmt= icodec->pix_fmt;
2007 ost->encoding_needed = 1;
2008 ist->decoding_needed = 1;
2009
2010 if (!ost->frame_rate.num)
2011 ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_frame_rate : (AVRational){25,1};
2012 if (ost->enc && ost->enc->supported_framerates && !force_fps) {
2013 int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
2014 ost->frame_rate = ost->enc->supported_framerates[idx];
2015 }
2016 codec->time_base = (AVRational){ost->frame_rate.den, ost->frame_rate.num};
2017
2018 #if CONFIG_AVFILTER
2019 if (configure_video_filters(ist, ost)) {
2020 fprintf(stderr, "Error opening filters!\n");
2021 exit(1);
2022 }
2023 #endif
2024 break;
2025 case AVMEDIA_TYPE_SUBTITLE:
2026 ost->encoding_needed = 1;
2027 ist->decoding_needed = 1;
2028 break;
2029 default:
2030 abort();
2031 break;
2032 }
2033 /* two pass mode */
2034 if (ost->encoding_needed &&
2035 (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
2036 char logfilename[1024];
2037 FILE *f;
2038
2039 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
2040 pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
2041 i);
2042 if (codec->flags & CODEC_FLAG_PASS1) {
2043 f = fopen(logfilename, "wb");
2044 if (!f) {
2045 fprintf(stderr, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno));
2046 exit_program(1);
2047 }
2048 ost->logfile = f;
2049 } else {
2050 char *logbuffer;
2051 size_t logbuffer_size;
2052 if (read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
2053 fprintf(stderr, "Error reading log file '%s' for pass-2 encoding\n", logfilename);
2054 exit_program(1);
2055 }
2056 codec->stats_in = logbuffer;
2057 }
2058 }
2059 }
2060 if(codec->codec_type == AVMEDIA_TYPE_VIDEO){
2061 int size= codec->width * codec->height;
2062 bit_buffer_size= FFMAX(bit_buffer_size, 6*size + 200);
2063 }
2064 }
2065
2066 if (!bit_buffer)
2067 bit_buffer = av_malloc(bit_buffer_size);
2068 if (!bit_buffer) {
2069 fprintf(stderr, "Cannot allocate %d bytes output buffer\n",
2070 bit_buffer_size);
2071 ret = AVERROR(ENOMEM);
2072 goto fail;
2073 }
2074
2075 /* open each encoder */
2076 for(i=0;i<nb_ostreams;i++) {
2077 ost = ost_table[i];
2078 if (ost->encoding_needed) {
2079 AVCodec *codec = ost->enc;
2080 AVCodecContext *dec = input_streams[ost->source_index].st->codec;
2081 if (!codec) {
2082 snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d.%d",
2083 ost->st->codec->codec_id, ost->file_index, ost->index);
2084 ret = AVERROR(EINVAL);
2085 goto dump_format;
2086 }
2087 if (dec->subtitle_header) {
2088 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
2089 if (!ost->st->codec->subtitle_header) {
2090 ret = AVERROR(ENOMEM);
2091 goto dump_format;
2092 }
2093 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2094 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
2095 }
2096 if (avcodec_open2(ost->st->codec, codec, &ost->opts) < 0) {
2097 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height",
2098 ost->file_index, ost->index);
2099 ret = AVERROR(EINVAL);
2100 goto dump_format;
2101 }
2102 assert_codec_experimental(ost->st->codec, 1);
2103 assert_avoptions(ost->opts);
2104 if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
2105 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
2106 "It takes bits/s as argument, not kbits/s\n");
2107 extra_size += ost->st->codec->extradata_size;
2108 }
2109 }
2110
2111 /* open each decoder */
2112 for (i = 0; i < nb_input_streams; i++) {
2113 ist = &input_streams[i];
2114 if (ist->decoding_needed) {
2115 AVCodec *codec = ist->dec;
2116 if (!codec)
2117 codec = avcodec_find_decoder(ist->st->codec->codec_id);
2118 if (!codec) {
2119 snprintf(error, sizeof(error), "Decoder (codec id %d) not found for input stream #%d.%d",
2120 ist->st->codec->codec_id, ist->file_index, ist->st->index);
2121 ret = AVERROR(EINVAL);
2122 goto dump_format;
2123 }
2124
2125 /* update requested sample format for the decoder based on the
2126 corresponding encoder sample format */
2127 for (j = 0; j < nb_ostreams; j++) {
2128 ost = ost_table[j];
2129 if (ost->source_index == i) {
2130 update_sample_fmt(ist->st->codec, codec, ost->st->codec);
2131 break;
2132 }
2133 }
2134
2135 if (avcodec_open2(ist->st->codec, codec, &ist->opts) < 0) {
2136 snprintf(error, sizeof(error), "Error while opening decoder for input stream #%d.%d",
2137 ist->file_index, ist->st->index);
2138 ret = AVERROR(EINVAL);
2139 goto dump_format;
2140 }
2141 assert_codec_experimental(ist->st->codec, 0);
2142 assert_avoptions(ost->opts);
2143 }
2144 }
2145
2146 /* init pts */
2147 for (i = 0; i < nb_input_streams; i++) {
2148 AVStream *st;
2149 ist = &input_streams[i];
2150 st= ist->st;
2151 ist->pts = st->avg_frame_rate.num ? - st->codec->has_b_frames*AV_TIME_BASE / av_q2d(st->avg_frame_rate) : 0;
2152 ist->next_pts = AV_NOPTS_VALUE;
2153 init_pts_correction(&ist->pts_ctx);
2154 ist->is_start = 1;
2155 }
2156
2157 /* open files and write file headers */
2158 for(i=0;i<nb_output_files;i++) {
2159 os = output_files[i];
2160 if (avformat_write_header(os, &output_opts[i]) < 0) {
2161 snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
2162 ret = AVERROR(EINVAL);
2163 goto dump_format;
2164 }
2165 assert_avoptions(output_opts[i]);
2166 if (strcmp(output_files[i]->oformat->name, "rtp")) {
2167 want_sdp = 0;
2168 }
2169 }
2170
2171 dump_format:
2172 /* dump the file output parameters - cannot be done before in case
2173 of stream copy */
2174 for(i=0;i<nb_output_files;i++) {
2175 av_dump_format(output_files[i], i, output_files[i]->filename, 1);
2176 }
2177
2178 /* dump the stream mapping */
2179 if (verbose >= 0) {
2180 fprintf(stderr, "Stream mapping:\n");
2181 for(i=0;i<nb_ostreams;i++) {
2182 ost = ost_table[i];
2183 fprintf(stderr, " Stream #%d.%d -> #%d.%d",
2184 input_streams[ost->source_index].file_index,
2185 input_streams[ost->source_index].st->index,
2186 ost->file_index,
2187 ost->index);
2188 if (ost->sync_ist != &input_streams[ost->source_index])
2189 fprintf(stderr, " [sync #%d.%d]",
2190 ost->sync_ist->file_index,
2191 ost->sync_ist->st->index);
2192 fprintf(stderr, "\n");
2193 }
2194 }
2195
2196 if (ret) {
2197 fprintf(stderr, "%s\n", error);
2198 goto fail;
2199 }
2200
2201 if (want_sdp) {
2202 print_sdp(output_files, nb_output_files);
2203 }
2204
2205 if (verbose >= 0)
2206 fprintf(stderr, "Press ctrl-c to stop encoding\n");
2207 term_init();
2208
2209 timer_start = av_gettime();
2210
2211 for(; received_sigterm == 0;) {
2212 int file_index, ist_index;
2213 AVPacket pkt;
2214 double ipts_min;
2215 double opts_min;
2216
2217 redo:
2218 ipts_min= 1e100;
2219 opts_min= 1e100;
2220
2221 /* select the stream that we must read now by looking at the
2222 smallest output pts */
2223 file_index = -1;
2224 for(i=0;i<nb_ostreams;i++) {
2225 double ipts, opts;
2226 ost = ost_table[i];
2227 os = output_files[ost->file_index];
2228 ist = &input_streams[ost->source_index];
2229 if(ist->is_past_recording_time || no_packet[ist->file_index])
2230 continue;
2231 opts = ost->st->pts.val * av_q2d(ost->st->time_base);
2232 ipts = (double)ist->pts;
2233 if (!input_files[ist->file_index].eof_reached){
2234 if(ipts < ipts_min) {
2235 ipts_min = ipts;
2236 if(input_sync ) file_index = ist->file_index;
2237 }
2238 if(opts < opts_min) {
2239 opts_min = opts;
2240 if(!input_sync) file_index = ist->file_index;
2241 }
2242 }
2243 if(ost->frame_number >= max_frames[ost->st->codec->codec_type]){
2244 file_index= -1;
2245 break;
2246 }
2247 }
2248 /* if none, if is finished */
2249 if (file_index < 0) {
2250 if(no_packet_count){
2251 no_packet_count=0;
2252 memset(no_packet, 0, sizeof(no_packet));
2253 usleep(10000);
2254 continue;
2255 }
2256 break;
2257 }
2258
2259 /* finish if limit size exhausted */
2260 if (limit_filesize != 0 && limit_filesize <= avio_tell(output_files[0]->pb))
2261 break;
2262
2263 /* read a frame from it and output it in the fifo */
2264 is = input_files[file_index].ctx;
2265 ret= av_read_frame(is, &pkt);
2266 if(ret == AVERROR(EAGAIN)){
2267 no_packet[file_index]=1;
2268 no_packet_count++;
2269 continue;
2270 }
2271 if (ret < 0) {
2272 input_files[file_index].eof_reached = 1;
2273 if (opt_shortest)
2274 break;
2275 else
2276 continue;
2277 }
2278
2279 no_packet_count=0;
2280 memset(no_packet, 0, sizeof(no_packet));
2281
2282 if (do_pkt_dump) {
2283 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2284 is->streams[pkt.stream_index]);
2285 }
2286 /* the following test is needed in case new streams appear
2287 dynamically in stream : we ignore them */
2288 if (pkt.stream_index >= input_files[file_index].ctx->nb_streams)
2289 goto discard_packet;
2290 ist_index = input_files[file_index].ist_index + pkt.stream_index;
2291 ist = &input_streams[ist_index];
2292 if (ist->discard)
2293 goto discard_packet;
2294
2295 if (pkt.dts != AV_NOPTS_VALUE)
2296 pkt.dts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2297 if (pkt.pts != AV_NOPTS_VALUE)
2298 pkt.pts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2299
2300 if (ist->ts_scale) {
2301 if(pkt.pts != AV_NOPTS_VALUE)
2302 pkt.pts *= ist->ts_scale;
2303 if(pkt.dts != AV_NOPTS_VALUE)
2304 pkt.dts *= ist->ts_scale;
2305 }
2306
2307 // fprintf(stderr, "next:%"PRId64" dts:%"PRId64" off:%"PRId64" %d\n", ist->next_pts, pkt.dts, input_files[ist->file_index].ts_offset, ist->st->codec->codec_type);
2308 if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
2309 && (is->iformat->flags & AVFMT_TS_DISCONT)) {
2310 int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2311 int64_t delta= pkt_dts - ist->next_pts;
2312 if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
2313 input_files[ist->file_index].ts_offset -= delta;
2314 if (verbose > 2)
2315 fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2316 delta, input_files[ist->file_index].ts_offset);
2317 pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2318 if(pkt.pts != AV_NOPTS_VALUE)
2319 pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2320 }
2321 }
2322
2323 /* finish if recording time exhausted */
2324 if (recording_time != INT64_MAX &&
2325 av_compare_ts(pkt.pts, ist->st->time_base, recording_time + start_time, (AVRational){1, 1000000}) >= 0) {
2326 ist->is_past_recording_time = 1;
2327 goto discard_packet;
2328 }
2329
2330 //fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->st->index, pkt.size);
2331 if (output_packet(ist, ist_index, ost_table, nb_ostreams, &pkt) < 0) {
2332
2333 if (verbose >= 0)
2334 fprintf(stderr, "Error while decoding stream #%d.%d\n",
2335 ist->file_index, ist->st->index);
2336 if (exit_on_error)
2337 exit_program(1);
2338 av_free_packet(&pkt);
2339 goto redo;
2340 }
2341
2342 discard_packet:
2343 av_free_packet(&pkt);
2344
2345 /* dump report by using the output first video and audio streams */
2346 print_report(output_files, ost_table, nb_ostreams, 0);
2347 }
2348
2349 /* at the end of stream, we must flush the decoder buffers */
2350 for (i = 0; i < nb_input_streams; i++) {
2351 ist = &input_streams[i];
2352 if (ist->decoding_needed) {
2353 output_packet(ist, i, ost_table, nb_ostreams, NULL);
2354 }
2355 }
2356
2357 term_exit();
2358
2359 /* write the trailer if needed and close file */
2360 for(i=0;i<nb_output_files;i++) {
2361 os = output_files[i];
2362 av_write_trailer(os);
2363 }
2364
2365 /* dump report by using the first video and audio streams */
2366 print_report(output_files, ost_table, nb_ostreams, 1);
2367
2368 /* close each encoder */
2369 for(i=0;i<nb_ostreams;i++) {
2370 ost = ost_table[i];
2371 if (ost->encoding_needed) {
2372 av_freep(&ost->st->codec->stats_in);
2373 avcodec_close(ost->st->codec);
2374 }
2375 #if CONFIG_AVFILTER
2376 avfilter_graph_free(&ost->graph);
2377 #endif
2378 }
2379
2380 /* close each decoder */
2381 for (i = 0; i < nb_input_streams; i++) {
2382 ist = &input_streams[i];
2383 if (ist->decoding_needed) {
2384 avcodec_close(ist->st->codec);
2385 }
2386 }
2387
2388 /* finished ! */
2389 ret = 0;
2390
2391 fail:
2392 av_freep(&bit_buffer);
2393
2394 if (ost_table) {
2395 for(i=0;i<nb_ostreams;i++) {
2396 ost = ost_table[i];
2397 if (ost) {
2398 if (ost->st->stream_copy)
2399 av_freep(&ost->st->codec->extradata);
2400 if (ost->logfile) {
2401 fclose(ost->logfile);
2402 ost->logfile = NULL;
2403 }
2404 av_fifo_free(ost->fifo); /* works even if fifo is not
2405 initialized but set to zero */
2406 av_freep(&ost->st->codec->subtitle_header);
2407 av_free(ost->pict_tmp.data[0]);
2408 av_free(ost->forced_kf_pts);
2409 if (ost->video_resample)
2410 sws_freeContext(ost->img_resample_ctx);
2411 if (ost->resample)
2412 audio_resample_close(ost->resample);
2413 if (ost->reformat_ctx)
2414 av_audio_convert_free(ost->reformat_ctx);
2415 av_dict_free(&ost->opts);
2416 av_free(ost);
2417 }
2418 }
2419 av_free(ost_table);
2420 }
2421 return ret;
2422 }
2423
2424 static int opt_format(const char *opt, const char *arg)
2425 {
2426 last_asked_format = arg;
2427 return 0;
2428 }
2429
2430 static int opt_video_rc_override_string(const char *opt, const char *arg)
2431 {
2432 video_rc_override_string = arg;
2433 return 0;
2434 }
2435
2436 static int opt_me_threshold(const char *opt, const char *arg)
2437 {
2438 me_threshold = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2439 return 0;
2440 }
2441
2442 static int opt_verbose(const char *opt, const char *arg)
2443 {
2444 verbose = parse_number_or_die(opt, arg, OPT_INT64, -10, 10);
2445 return 0;
2446 }
2447
2448 static int opt_frame_rate(const char *opt, const char *arg)
2449 {
2450 if (av_parse_video_rate(&frame_rate, arg) < 0) {
2451 fprintf(stderr, "Incorrect value for %s: %s\n", opt, arg);
2452 exit_program(1);
2453 }
2454 return 0;
2455 }
2456
2457 static int opt_frame_crop(const char *opt, const char *arg)
2458 {
2459 fprintf(stderr, "Option '%s' has been removed, use the crop filter instead\n", opt);
2460 return AVERROR(EINVAL);
2461 }
2462
2463 static int opt_frame_size(const char *opt, const char *arg)
2464 {
2465 if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2466 fprintf(stderr, "Incorrect frame size\n");
2467 return AVERROR(EINVAL);
2468 }
2469 return 0;
2470 }
2471
2472 static int opt_pad(const char *opt, const char *arg) {
2473 fprintf(stderr, "Option '%s' has been removed, use the pad filter instead\n", opt);
2474 return -1;
2475 }
2476
2477 static int opt_frame_pix_fmt(const char *opt, const char *arg)
2478 {
2479 if (strcmp(arg, "list")) {
2480 frame_pix_fmt = av_get_pix_fmt(arg);
2481 if (frame_pix_fmt == PIX_FMT_NONE) {
2482 fprintf(stderr, "Unknown pixel format requested: %s\n", arg);
2483 return AVERROR(EINVAL);
2484 }
2485 } else {
2486 show_pix_fmts();
2487 exit_program(0);
2488 }
2489 return 0;
2490 }
2491
2492 static int opt_frame_aspect_ratio(const char *opt, const char *arg)
2493 {
2494 int x = 0, y = 0;
2495 double ar = 0;
2496 const char *p;
2497 char *end;
2498
2499 p = strchr(arg, ':');
2500 if (p) {
2501 x = strtol(arg, &end, 10);
2502 if (end == p)
2503 y = strtol(end+1, &end, 10);
2504 if (x > 0 && y > 0)
2505 ar = (double)x / (double)y;
2506 } else
2507 ar = strtod(arg, NULL);
2508
2509 if (!ar) {
2510 fprintf(stderr, "Incorrect aspect ratio specification.\n");
2511 return AVERROR(EINVAL);
2512 }
2513 frame_aspect_ratio = ar;
2514 return 0;
2515 }
2516
2517 static int opt_metadata(const char *opt, const char *arg)
2518 {
2519 char *mid= strchr(arg, '=');
2520
2521 if(!mid){
2522 fprintf(stderr, "Missing =\n");
2523 exit_program(1);
2524 }
2525 *mid++= 0;
2526
2527 av_dict_set(&metadata, arg, mid, 0);
2528
2529 return 0;
2530 }
2531
2532 static int opt_qscale(const char *opt, const char *arg)
2533 {
2534 video_qscale = parse_number_or_die(opt, arg, OPT_FLOAT, 0, 255);
2535 if (video_qscale == 0) {
2536 fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
2537 return AVERROR(EINVAL);
2538 }
2539 return 0;
2540 }
2541
2542 static int opt_top_field_first(const char *opt, const char *arg)
2543 {
2544 top_field_first = parse_number_or_die(opt, arg, OPT_INT, 0, 1);
2545 return 0;
2546 }
2547
2548 static int opt_thread_count(const char *opt, const char *arg)
2549 {
2550 thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2551 #if !HAVE_THREADS
2552 if (verbose >= 0)
2553 fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
2554 #endif
2555 return 0;
2556 }
2557
2558 static int opt_audio_sample_fmt(const char *opt, const char *arg)
2559 {
2560 if (strcmp(arg, "list")) {
2561 audio_sample_fmt = av_get_sample_fmt(arg);
2562 if (audio_sample_fmt == AV_SAMPLE_FMT_NONE) {
2563 av_log(NULL, AV_LOG_ERROR, "Invalid sample format '%s'\n", arg);
2564 return AVERROR(EINVAL);
2565 }
2566 } else {
2567 int i;
2568 char fmt_str[128];
2569 for (i = -1; i < AV_SAMPLE_FMT_NB; i++)
2570 printf("%s\n", av_get_sample_fmt_string(fmt_str, sizeof(fmt_str), i));
2571 exit_program(0);
2572 }
2573 return 0;
2574 }
2575
2576 static int opt_audio_rate(const char *opt, const char *arg)
2577 {
2578 audio_sample_rate = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2579 return 0;
2580 }
2581
2582 static int opt_audio_channels(const char *opt, const char *arg)
2583 {
2584 audio_channels = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2585 return 0;
2586 }
2587
2588 static int opt_codec(const char *opt, const char *arg)
2589 {
2590 return av_dict_set(&codec_names, opt, arg, 0);
2591 }
2592
2593 static int opt_audio_codec(const char *opt, const char *arg)
2594 {
2595 return opt_codec("codec:a", arg);
2596 }
2597
2598 static int opt_video_codec(const char *opt, const char *arg)
2599 {
2600 return opt_codec("codec:v", arg);
2601 }
2602
2603 static int opt_subtitle_codec(const char *opt, const char *arg)
2604 {
2605 return opt_codec("codec:s", arg);
2606 }
2607
2608 static int opt_data_codec(const char *opt, const char *arg)
2609 {
2610 return opt_codec("codec:d", arg);
2611 }
2612
2613 static int opt_codec_tag(const char *opt, const char *arg)
2614 {
2615 char *tail;
2616 uint32_t *codec_tag;
2617
2618 codec_tag = !strcmp(opt, "atag") ? &audio_codec_tag :
2619 !strcmp(opt, "vtag") ? &video_codec_tag :
2620 !strcmp(opt, "stag") ? &subtitle_codec_tag : NULL;
2621 if (!codec_tag)
2622 return -1;
2623
2624 *codec_tag = strtol(arg, &tail, 0);
2625 if (!tail || *tail)
2626 *codec_tag = AV_RL32(arg);
2627
2628 return 0;
2629 }
2630
2631 static int opt_map(const char *opt, const char *arg)
2632 {
2633 StreamMap *m = NULL;
2634 int i, negative = 0, file_idx;
2635 int sync_file_idx = -1, sync_stream_idx;
2636 char *p, *sync;
2637 char *map;
2638
2639 if (*arg == '-') {
2640 negative = 1;
2641 arg++;
2642 }
2643 map = av_strdup(arg);
2644
2645 /* parse sync stream first, just pick first matching stream */
2646 if (sync = strchr(map, ',')) {
2647 *sync = 0;
2648 sync_file_idx = strtol(sync + 1, &sync, 0);
2649 if (sync_file_idx >= nb_input_files || sync_file_idx < 0) {
2650 av_log(NULL, AV_LOG_ERROR, "Invalid sync file index: %d.\n", sync_file_idx);
2651 exit_program(1);
2652 }
2653 if (*sync)
2654 sync++;
2655 for (i = 0; i < input_files[sync_file_idx].ctx->nb_streams; i++)
2656 if (check_stream_specifier(input_files[sync_file_idx].ctx,
2657 input_files[sync_file_idx].ctx->streams[i], sync) == 1) {
2658 sync_stream_idx = i;
2659 break;
2660 }
2661 if (i == input_files[sync_file_idx].ctx->nb_streams) {
2662 av_log(NULL, AV_LOG_ERROR, "Sync stream specification in map %s does not "
2663 "match any streams.\n", arg);
2664 exit_program(1);
2665 }
2666 }
2667
2668
2669 file_idx = strtol(map, &p, 0);
2670 if (file_idx >= nb_input_files || file_idx < 0) {
2671 av_log(NULL, AV_LOG_ERROR, "Invalid input file index: %d.\n", file_idx);
2672 exit_program(1);
2673 }
2674 if (negative)
2675 /* disable some already defined maps */
2676 for (i = 0; i < nb_stream_maps; i++) {
2677 m = &stream_maps[i];
2678 if (check_stream_specifier(input_files[m->file_index].ctx,
2679 input_files[m->file_index].ctx->streams[m->stream_index],
2680 *p == ':' ? p + 1 : p) > 0)
2681 m->disabled = 1;
2682 }
2683 else
2684 for (i = 0; i < input_files[file_idx].ctx->nb_streams; i++) {
2685 if (check_stream_specifier(input_files[file_idx].ctx, input_files[file_idx].ctx->streams[i],
2686 *p == ':' ? p + 1 : p) <= 0)
2687 continue;
2688 stream_maps = grow_array(stream_maps, sizeof(*stream_maps), &nb_stream_maps, nb_stream_maps + 1);
2689 m = &stream_maps[nb_stream_maps - 1];
2690
2691 m->file_index = file_idx;
2692 m->stream_index = i;
2693
2694 if (sync_file_idx >= 0) {
2695 m->sync_file_index = sync_file_idx;
2696 m->sync_stream_index = sync_stream_idx;
2697 } else {
2698 m->sync_file_index = file_idx;
2699 m->sync_stream_index = i;
2700 }
2701 }
2702
2703 if (!m) {
2704 av_log(NULL, AV_LOG_ERROR, "Stream map '%s' matches no streams.\n", arg);
2705 exit_program(1);
2706 }
2707
2708 av_freep(&map);
2709 return 0;
2710 }
2711
2712 static void parse_meta_type(char *arg, char *type, int *index)
2713 {
2714 if (*arg == ':') {
2715 *type = *(++arg);
2716 switch (*arg) {
2717 case 'g':
2718 break;
2719 case 's':
2720 case 'c':
2721 case 'p':
2722 if (*(++arg) == ':')
2723 *index = strtol(++arg, NULL, 0);
2724 break;
2725 default:
2726 fprintf(stderr, "Invalid metadata type %c.\n", *arg);
2727 exit_program(1);
2728 }
2729 } else
2730 *type = 'g';
2731 }
2732
2733 static int opt_map_metadata(const char *opt, const char *arg)
2734 {
2735 MetadataMap *m, *m1;
2736 char *p;
2737
2738 meta_data_maps = grow_array(meta_data_maps, sizeof(*meta_data_maps),
2739 &nb_meta_data_maps, nb_meta_data_maps + 1);
2740
2741 m = &meta_data_maps[nb_meta_data_maps - 1][1];
2742 m->file = strtol(arg, &p, 0);
2743 parse_meta_type(p, &m->type, &m->index);
2744
2745 m1 = &meta_data_maps[nb_meta_data_maps - 1][0];
2746 if (p = strchr(opt, ':'))
2747 parse_meta_type(p, &m1->type, &m1->index);
2748 else
2749 m1->type = 'g';
2750
2751 if (m->type == 'g' || m1->type == 'g')
2752 metadata_global_autocopy = 0;
2753 if (m->type == 's' || m1->type == 's')
2754 metadata_streams_autocopy = 0;
2755 if (m->type == 'c' || m1->type == 'c')
2756 metadata_chapters_autocopy = 0;
2757
2758 return 0;
2759 }
2760
2761 static int opt_input_ts_scale(const char *opt, const char *arg)
2762 {
2763 unsigned int stream;
2764 double scale;
2765 char *p;
2766
2767 stream = strtol(arg, &p, 0);
2768 if (*p)
2769 p++;
2770 scale= strtod(p, &p);
2771
2772 ts_scale = grow_array(ts_scale, sizeof(*ts_scale), &nb_ts_scale, stream + 1);
2773 ts_scale[stream] = scale;
2774 return 0;
2775 }
2776
2777 static int opt_recording_time(const char *opt, const char *arg)
2778 {
2779 recording_time = parse_time_or_die(opt, arg, 1);
2780 return 0;
2781 }
2782
2783 static int opt_start_time(const char *opt, const char *arg)
2784 {
2785 start_time = parse_time_or_die(opt, arg, 1);
2786 return 0;
2787 }
2788
2789 static int opt_input_ts_offset(const char *opt, const char *arg)
2790 {
2791 input_ts_offset = parse_time_or_die(opt, arg, 1);
2792 return 0;
2793 }
2794
2795 static enum CodecID find_codec_or_die(const char *name, enum AVMediaType type, int encoder)
2796 {
2797 const char *codec_string = encoder ? "encoder" : "decoder";
2798 AVCodec *codec;
2799
2800 if(!name)
2801 return CODEC_ID_NONE;
2802 codec = encoder ?
2803 avcodec_find_encoder_by_name(name) :
2804 avcodec_find_decoder_by_name(name);
2805 if(!codec) {
2806 av_log(NULL, AV_LOG_ERROR, "Unknown %s '%s'\n", codec_string, name);
2807 exit_program(1);
2808 }
2809 if(codec->type != type) {
2810 av_log(NULL, AV_LOG_ERROR, "Invalid %s type '%s'\n", codec_string, name);
2811 exit_program(1);
2812 }
2813 return codec->id;
2814 }
2815
2816 static AVCodec *choose_codec(AVFormatContext *s, AVStream *st, enum AVMediaType type, AVDictionary *codec_names)
2817 {
2818 AVDictionaryEntry *e = NULL;
2819 char *codec_name = NULL;
2820 int ret;
2821
2822 while (e = av_dict_get(codec_names, "", e, AV_DICT_IGNORE_SUFFIX)) {
2823 char *p = strchr(e->key, ':');
2824
2825 if ((ret = check_stream_specifier(s, st, p ? p + 1 : "")) > 0)
2826 codec_name = e->value;
2827 else if (ret < 0)
2828 exit_program(1);
2829 }
2830
2831 if (!codec_name) {
2832 return NULL;
2833 } else if (!strcmp(codec_name, "copy"))
2834 st->stream_copy = 1;
2835 else {
2836 st->codec->codec_id = find_codec_or_die(codec_name, type, s->iformat == NULL);
2837 return s->oformat ? avcodec_find_encoder_by_name(codec_name) :
2838 avcodec_find_decoder_by_name(codec_name);
2839 }
2840
2841 return NULL;
2842 }
2843
2844 static int opt_input_file(const char *opt, const char *filename)
2845 {
2846 AVFormatContext *ic;
2847 AVInputFormat *file_iformat = NULL;
2848 int err, i, ret, rfps, rfps_base;
2849 int64_t timestamp;
2850 uint8_t buf[128];
2851 AVDictionary **opts;
2852 int orig_nb_streams; // number of streams before avformat_find_stream_info
2853
2854 if (last_asked_format) {
2855 if (!(file_iformat = av_find_input_format(last_asked_format))) {
2856 fprintf(stderr, "Unknown input format: '%s'\n", last_asked_format);
2857 exit_program(1);
2858 }
2859 last_asked_format = NULL;
2860 }
2861
2862 if (!strcmp(filename, "-"))
2863 filename = "pipe:";
2864
2865 using_stdin |= !strncmp(filename, "pipe:", 5) ||
2866 !strcmp(filename, "/dev/stdin");
2867
2868 /* get default parameters from command line */
2869 ic = avformat_alloc_context();
2870 if (!ic) {
2871 print_error(filename, AVERROR(ENOMEM));
2872 exit_program(1);
2873 }
2874 if (audio_sample_rate) {
2875 snprintf(buf, sizeof(buf), "%d", audio_sample_rate);
2876 av_dict_set(&format_opts, "sample_rate", buf, 0);
2877 }
2878 if (audio_channels) {
2879 snprintf(buf, sizeof(buf), "%d", audio_channels);
2880 av_dict_set(&format_opts, "channels", buf, 0);
2881 }
2882 if (frame_rate.num) {
2883 snprintf(buf, sizeof(buf), "%d/%d", frame_rate.num, frame_rate.den);
2884 av_dict_set(&format_opts, "framerate", buf, 0);
2885 }
2886 if (frame_width && frame_height) {
2887 snprintf(buf, sizeof(buf), "%dx%d", frame_width, frame_height);
2888 av_dict_set(&format_opts, "video_size", buf, 0);
2889 }
2890 if (frame_pix_fmt != PIX_FMT_NONE)
2891 av_dict_set(&format_opts, "pixel_format", av_get_pix_fmt_name(frame_pix_fmt), 0);
2892
2893 ic->flags |= AVFMT_FLAG_NONBLOCK;
2894
2895 /* open the input file with generic libav function */
2896 err = avformat_open_input(&ic, filename, file_iformat, &format_opts);
2897 if (err < 0) {
2898 print_error(filename, err);
2899 exit_program(1);
2900 }
2901 assert_avoptions(format_opts);
2902
2903 if(opt_programid) {
2904 int i, j;
2905 int found=0;
2906 for(i=0; i<ic->nb_streams; i++){
2907 ic->streams[i]->discard= AVDISCARD_ALL;
2908 }
2909 for(i=0; i<ic->nb_programs; i++){
2910 AVProgram *p= ic->programs[i];
2911 if(p->id != opt_programid){
2912 p->discard = AVDISCARD_ALL;
2913 }else{
2914 found=1;
2915 for(j=0; j<p->nb_stream_indexes; j++){
2916 ic->streams[p->stream_index[j]]->discard= AVDISCARD_DEFAULT;
2917 }
2918 }
2919 }
2920 if(!found){
2921 fprintf(stderr, "Specified program id not found\n");
2922 exit_program(1);
2923 }
2924 opt_programid=0;
2925 }
2926
2927 /* apply forced codec ids */
2928 for (i = 0; i < ic->nb_streams; i++)
2929 choose_codec(ic, ic->streams[i], ic->streams[i]->codec->codec_type, codec_names);
2930
2931 /* Set AVCodecContext options for avformat_find_stream_info */
2932 opts = setup_find_stream_info_opts(ic, codec_opts);
2933 orig_nb_streams = ic->nb_streams;
2934
2935 /* If not enough info to get the stream parameters, we decode the
2936 first frames to get it. (used in mpeg case for example) */
2937 ret = avformat_find_stream_info(ic, opts);
2938 if (ret < 0 && verbose >= 0) {
2939 fprintf(stderr, "%s: could not find codec parameters\n", filename);
2940 av_close_input_file(ic);
2941 exit_program(1);
2942 }
2943
2944 timestamp = start_time;
2945 /* add the stream start time */
2946 if (ic->start_time != AV_NOPTS_VALUE)
2947 timestamp += ic->start_time;
2948
2949 /* if seeking requested, we execute it */
2950 if (start_time != 0) {
2951 ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
2952 if (ret < 0) {
2953 fprintf(stderr, "%s: could not seek to position %0.3f\n",
2954 filename, (double)timestamp / AV_TIME_BASE);
2955 }
2956 /* reset seek info */
2957 start_time = 0;
2958 }
2959
2960 /* update the current parameters so that they match the one of the input stream */
2961 for(i=0;i<ic->nb_streams;i++) {
2962 AVStream *st = ic->streams[i];
2963 AVCodecContext *dec = st->codec;
2964 InputStream *ist;
2965
2966 dec->thread_count = thread_count;
2967
2968 input_streams = grow_array(input_streams, sizeof(*input_streams), &nb_input_streams, nb_input_streams + 1);
2969 ist = &input_streams[nb_input_streams - 1];
2970 ist->st = st;
2971 ist->file_index = nb_input_files;
2972 ist->discard = 1;
2973 ist->opts = filter_codec_opts(codec_opts, ist->st->codec->codec_id, ic, st);
2974
2975 if (i < nb_ts_scale)
2976 ist->ts_scale = ts_scale[i];
2977
2978 ist->dec = choose_codec(ic, st, dec->codec_type, codec_names);
2979
2980 switch (dec->codec_type) {
2981 case AVMEDIA_TYPE_AUDIO:
2982 if(audio_disable)
2983 st->discard= AVDISCARD_ALL;
2984 break;
2985 case AVMEDIA_TYPE_VIDEO:
2986 rfps = ic->streams[i]->r_frame_rate.num;
2987 rfps_base = ic->streams[i]->r_frame_rate.den;
2988 if (dec->lowres) {
2989 dec->flags |= CODEC_FLAG_EMU_EDGE;
2990 dec->height >>= dec->lowres;
2991 dec->width >>= dec->lowres;
2992 }
2993 if(me_threshold)
2994 dec->debug |= FF_DEBUG_MV;
2995
2996 if (dec->time_base.den != rfps*dec->ticks_per_frame || dec->time_base.num != rfps_base) {
2997
2998 if (verbose >= 0)
2999 fprintf(stderr,"\nSeems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d)\n",
3000 i, (float)dec->time_base.den / dec->time_base.num, dec->time_base.den, dec->time_base.num,
3001
3002 (float)rfps / rfps_base, rfps, rfps_base);
3003 }
3004
3005 if(video_disable)
3006 st->discard= AVDISCARD_ALL;
3007 else if(video_discard)
3008 st->discard= video_discard;
3009 break;
3010 case AVMEDIA_TYPE_DATA:
3011 break;
3012 case AVMEDIA_TYPE_SUBTITLE:
3013 if(subtitle_disable)
3014 st->discard = AVDISCARD_ALL;
3015 break;
3016 case AVMEDIA_TYPE_ATTACHMENT:
3017 case AVMEDIA_TYPE_UNKNOWN:
3018 break;
3019 default:
3020 abort();
3021 }
3022 }
3023
3024 /* dump the file content */
3025 if (verbose >= 0)
3026 av_dump_format(ic, nb_input_files, filename, 0);
3027
3028 input_files = grow_array(input_files, sizeof(*input_files), &nb_input_files, nb_input_files + 1);
3029 input_files[nb_input_files - 1].ctx = ic;
3030 input_files[nb_input_files - 1].ist_index = nb_input_streams - ic->nb_streams;
3031 input_files[nb_input_files - 1].ts_offset = input_ts_offset - (copy_ts ? 0 : timestamp);
3032
3033 frame_rate = (AVRational){0, 0};
3034 frame_pix_fmt = PIX_FMT_NONE;
3035 frame_height = 0;
3036 frame_width = 0;
3037 audio_sample_rate = 0;
3038 audio_channels = 0;
3039 audio_sample_fmt = AV_SAMPLE_FMT_NONE;
3040 av_freep(&ts_scale);
3041 nb_ts_scale = 0;
3042
3043 for (i = 0; i < orig_nb_streams; i++)
3044 av_dict_free(&opts[i]);
3045 av_freep(&opts);
3046 av_dict_free(&codec_names);
3047 uninit_opts();
3048 init_opts();
3049 return 0;
3050 }
3051
3052 static void parse_forced_key_frames(char *kf, OutputStream *ost,
3053 AVCodecContext *avctx)
3054 {
3055 char *p;
3056 int n = 1, i;
3057 int64_t t;
3058
3059 for (p = kf; *p; p++)
3060 if (*p == ',')
3061 n++;
3062 ost->forced_kf_count = n;
3063 ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
3064 if (!ost->forced_kf_pts) {
3065 av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
3066 exit_program(1);
3067 }
3068 for (i = 0; i < n; i++) {
3069 p = i ? strchr(p, ',') + 1 : kf;
3070 t = parse_time_or_die("force_key_frames", p, 1);
3071 ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
3072 }
3073 }
3074
3075 static OutputStream *new_output_stream(AVFormatContext *oc, enum AVMediaType type, int source_idx)
3076 {
3077 OutputStream *ost;
3078 AVStream *st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
3079 int idx = oc->nb_streams - 1;
3080
3081 if (!st) {
3082 av_log(NULL, AV_LOG_ERROR, "Could not alloc stream.\n");
3083 exit_program(1);
3084 }
3085
3086 output_streams_for_file[nb_output_files] =
3087 grow_array(output_streams_for_file[nb_output_files],
3088 sizeof(*output_streams_for_file[nb_output_files]),
3089 &nb_output_streams_for_file[nb_output_files],
3090 oc->nb_streams);
3091 ost = output_streams_for_file[nb_output_files][idx] =
3092 av_mallocz(sizeof(OutputStream));
3093 if (!ost) {
3094 fprintf(stderr, "Could not alloc output stream\n");
3095 exit_program(1);
3096 }
3097 ost->file_index = nb_output_files;
3098 ost->index = idx;
3099 ost->st = st;
3100 st->codec->codec_type = type;
3101 ost->enc = choose_codec(oc, st, type, codec_names);
3102 if (!ost->enc) {
3103 /* no codec specified, try copy if possible or fallback to format default */
3104 if (source_idx >= 0 && avformat_query_codec(oc->oformat, input_streams[source_idx].st->codec->codec_id,
3105 FF_COMPLIANCE_NORMAL) == 1) {
3106 st->codec->codec_id = input_streams[source_idx].st->codec->codec_id;
3107 st->stream_copy = 1;
3108 } else {
3109 st->codec->codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, type);
3110 ost->enc = avcodec_find_encoder(st->codec->codec_id);
3111 }
3112 }
3113
3114 if (ost->enc) {
3115 ost->opts = filter_codec_opts(codec_opts, ost->enc->id, oc, st);
3116 }
3117
3118 avcodec_get_context_defaults3(st->codec, ost->enc);
3119 st->codec->codec_type = type; // XXX hack, avcodec_get_context_defaults2() sets type to unknown for stream copy
3120
3121 ost->sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
3122 return ost;
3123 }
3124
3125 static OutputStream *new_video_stream(AVFormatContext *oc, int source_idx)
3126 {
3127 AVStream *st;
3128 OutputStream *ost;
3129 AVCodecContext *video_enc;
3130
3131 ost = new_output_stream(oc, AVMEDIA_TYPE_VIDEO, source_idx);
3132 st = ost->st;
3133 if (!st->stream_copy) {
3134 ost->frame_aspect_ratio = frame_aspect_ratio;
3135 frame_aspect_ratio = 0;
3136 #if CONFIG_AVFILTER
3137 ost->avfilter= vfilters;
3138 vfilters = NULL;
3139 #endif
3140 }
3141
3142 ost->bitstream_filters = video_bitstream_filters;
3143 video_bitstream_filters= NULL;
3144
3145 st->codec->thread_count= thread_count;
3146
3147 video_enc = st->codec;
3148
3149 if(video_codec_tag)
3150 video_enc->codec_tag= video_codec_tag;
3151
3152 if(oc->oformat->flags & AVFMT_GLOBALHEADER) {
3153 video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3154 }
3155
3156 if (st->stream_copy) {
3157 video_enc->sample_aspect_ratio =
3158 st->sample_aspect_ratio = av_d2q(frame_aspect_ratio*frame_height/frame_width, 255);
3159 } else {
3160 const char *p;
3161 int i;
3162
3163 if (frame_rate.num)
3164 ost->frame_rate = frame_rate;
3165
3166 video_enc->width = frame_width;
3167 video_enc->height = frame_height;
3168 video_enc->pix_fmt = frame_pix_fmt;
3169 st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
3170
3171 if (intra_only)
3172 video_enc->gop_size = 0;
3173 if (video_qscale || same_quant) {
3174 video_enc->flags |= CODEC_FLAG_QSCALE;
3175 video_enc->global_quality = FF_QP2LAMBDA * video_qscale;
3176 }
3177
3178 if(intra_matrix)
3179 video_enc->intra_matrix = intra_matrix;
3180 if(inter_matrix)
3181 video_enc->inter_matrix = inter_matrix;
3182
3183 p= video_rc_override_string;
3184 for(i=0; p; i++){
3185 int start, end, q;
3186 int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
3187 if(e!=3){
3188 fprintf(stderr, "error parsing rc_override\n");
3189 exit_program(1);
3190 }
3191 video_enc->rc_override=
3192 av_realloc(video_enc->rc_override,
3193 sizeof(RcOverride)*(i+1));
3194 video_enc->rc_override[i].start_frame= start;
3195 video_enc->rc_override[i].end_frame = end;
3196 if(q>0){
3197 video_enc->rc_override[i].qscale= q;
3198 video_enc->rc_override[i].quality_factor= 1.0;
3199 }
3200 else{
3201 video_enc->rc_override[i].qscale= 0;
3202 video_enc->rc_override[i].quality_factor= -q/100.0;
3203 }
3204 p= strchr(p, '/');
3205 if(p) p++;
3206 }
3207 video_enc->rc_override_count=i;
3208 if (!video_enc->rc_initial_buffer_occupancy)
3209 video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size*3/4;
3210 video_enc->me_threshold= me_threshold;
3211 video_enc->intra_dc_precision= intra_dc_precision - 8;
3212
3213 if (do_psnr)
3214 video_enc->flags|= CODEC_FLAG_PSNR;
3215
3216 /* two pass mode */
3217 if (do_pass) {
3218 if (do_pass == 1) {
3219 video_enc->flags |= CODEC_FLAG_PASS1;
3220 } else {
3221 video_enc->flags |= CODEC_FLAG_PASS2;
3222 }
3223 }
3224
3225 if (forced_key_frames)
3226 parse_forced_key_frames(forced_key_frames, ost, video_enc);
3227 }
3228 if (video_language) {
3229 av_dict_set(&st->metadata, "language", video_language, 0);
3230 av_freep(&video_language);
3231 }
3232
3233 /* reset some key parameters */
3234 video_disable = 0;
3235 av_freep(&forced_key_frames);
3236 frame_pix_fmt = PIX_FMT_NONE;
3237 return ost;
3238 }
3239
3240 static OutputStream *new_audio_stream(AVFormatContext *oc, int source_idx)
3241 {
3242 AVStream *st;
3243 OutputStream *ost;
3244 AVCodecContext *audio_enc;
3245
3246 ost = new_output_stream(oc, AVMEDIA_TYPE_AUDIO, source_idx);
3247 st = ost->st;
3248
3249 ost->bitstream_filters = audio_bitstream_filters;
3250 audio_bitstream_filters= NULL;
3251
3252 st->codec->thread_count= thread_count;
3253
3254 audio_enc = st->codec;
3255 audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
3256
3257 if(audio_codec_tag)
3258 audio_enc->codec_tag= audio_codec_tag;
3259
3260 if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3261 audio_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3262 }
3263 if (!st->stream_copy) {
3264 if (audio_qscale > QSCALE_NONE) {
3265 audio_enc->flags |= CODEC_FLAG_QSCALE;
3266 audio_enc->global_quality = FF_QP2LAMBDA * audio_qscale;
3267 }
3268 if (audio_channels)
3269 audio_enc->channels = audio_channels;
3270 if (audio_sample_fmt != AV_SAMPLE_FMT_NONE)
3271 audio_enc->sample_fmt = audio_sample_fmt;
3272 if (audio_sample_rate)
3273 audio_enc->sample_rate = audio_sample_rate;
3274 }
3275 if (audio_language) {
3276 av_dict_set(&st->metadata, "language", audio_language, 0);
3277 av_freep(&audio_language);
3278 }
3279
3280 /* reset some key parameters */
3281 audio_disable = 0;
3282
3283 return ost;
3284 }
3285
3286 static OutputStream *new_data_stream(AVFormatContext *oc, int source_idx)
3287 {
3288 AVStream *st;
3289 OutputStream *ost;
3290 AVCodecContext *data_enc;
3291
3292 ost = new_output_stream(oc, AVMEDIA_TYPE_DATA, source_idx);
3293 st = ost->st;
3294 data_enc = st->codec;
3295 if (!st->stream_copy) {
3296 fprintf(stderr, "Data stream encoding not supported yet (only streamcopy)\n");
3297 exit_program(1);
3298 }
3299
3300 if (data_codec_tag)
3301 data_enc->codec_tag= data_codec_tag;
3302
3303 if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3304 data_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3305 }
3306
3307 data_disable = 0;
3308 return ost;
3309 }
3310
3311 static OutputStream *new_subtitle_stream(AVFormatContext *oc, int source_idx)
3312 {
3313 AVStream *st;
3314 OutputStream *ost;
3315 AVCodecContext *subtitle_enc;
3316
3317 ost = new_output_stream(oc, AVMEDIA_TYPE_SUBTITLE, source_idx);
3318 st = ost->st;
3319 subtitle_enc = st->codec;
3320
3321 ost->bitstream_filters = subtitle_bitstream_filters;
3322 subtitle_bitstream_filters= NULL;
3323
3324 subtitle_enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
3325
3326 if(subtitle_codec_tag)
3327 subtitle_enc->codec_tag= subtitle_codec_tag;
3328
3329 if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
3330 subtitle_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
3331 }
3332
3333 if (subtitle_language) {
3334 av_dict_set(&st->metadata, "language", subtitle_language, 0);
3335 av_freep(&subtitle_language);
3336 }
3337
3338 subtitle_disable = 0;
3339 return ost;
3340 }
3341
3342 /* arg format is "output-stream-index:streamid-value". */
3343 static int opt_streamid(const char *opt, const char *arg)
3344 {
3345 int idx;
3346 char *p;
3347 char idx_str[16];
3348
3349 av_strlcpy(idx_str, arg, sizeof(idx_str));
3350 p = strchr(idx_str, ':');
3351 if (!p) {
3352 fprintf(stderr,
3353 "Invalid value '%s' for option '%s', required syntax is 'index:value'\n",
3354 arg, opt);
3355 exit_program(1);
3356 }
3357 *p++ = '\0';
3358 idx = parse_number_or_die(opt, idx_str, OPT_INT, 0, INT_MAX);
3359 streamid_map = grow_array(streamid_map, sizeof(*streamid_map), &nb_streamid_map, idx+1);
3360 streamid_map[idx] = parse_number_or_die(opt, p, OPT_INT, 0, INT_MAX);
3361 return 0;
3362 }
3363
3364 static int copy_chapters(int infile, int outfile)
3365 {
3366 AVFormatContext *is = input_files[infile].ctx;
3367 AVFormatContext *os = output_files[outfile];
3368 int i;
3369
3370 for (i = 0; i < is->nb_chapters; i++) {
3371 AVChapter *in_ch = is->chapters[i], *out_ch;
3372 int64_t ts_off = av_rescale_q(start_time - input_files[infile].ts_offset,
3373 AV_TIME_BASE_Q, in_ch->time_base);
3374 int64_t rt = (recording_time == INT64_MAX) ? INT64_MAX :
3375 av_rescale_q(recording_time, AV_TIME_BASE_Q, in_ch->time_base);
3376
3377
3378 if (in_ch->end < ts_off)
3379 continue;
3380 if (rt != INT64_MAX && in_ch->start > rt + ts_off)
3381 break;
3382
3383 out_ch = av_mallocz(sizeof(AVChapter));
3384 if (!out_ch)
3385 return AVERROR(ENOMEM);
3386
3387 out_ch->id = in_ch->id;
3388 out_ch->time_base = in_ch->time_base;
3389 out_ch->start = FFMAX(0, in_ch->start - ts_off);
3390 out_ch->end = FFMIN(rt, in_ch->end - ts_off);
3391
3392 if (metadata_chapters_autocopy)
3393 av_dict_copy(&out_ch->metadata, in_ch->metadata, 0);
3394
3395 os->nb_chapters++;
3396 os->chapters = av_realloc(os->chapters, sizeof(AVChapter)*os->nb_chapters);
3397 if (!os->chapters)
3398 return AVERROR(ENOMEM);
3399 os->chapters[os->nb_chapters - 1] = out_ch;
3400 }
3401 return 0;
3402 }
3403
3404 static int read_avserver_streams(AVFormatContext *s, const char *filename)
3405 {
3406 int i, err;
3407 AVFormatContext *ic = NULL;
3408
3409 err = avformat_open_input(&ic, filename, NULL, NULL);
3410 if (err < 0)
3411 return err;
3412 /* copy stream format */
3413 for(i=0;i<ic->nb_streams;i++) {
3414 AVStream *st;
3415 OutputStream *ost;
3416 AVCodec *codec;
3417
3418 codec = avcodec_find_encoder(ic->streams[i]->codec->codec_id);
3419 ost = new_output_stream(s, codec->type, -1);
3420 st = ost->st;
3421
3422 // FIXME: a more elegant solution is needed
3423 memcpy(st, ic->streams[i], sizeof(AVStream));
3424 st->info = NULL;
3425 avcodec_copy_context(st->codec, ic->streams[i]->codec);
3426
3427 if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO && !st->stream_copy)
3428 choose_sample_fmt(st, codec);
3429 else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO && !st->stream_copy)
3430 choose_pixel_fmt(st, codec);
3431 }
3432
3433 av_close_input_file(ic);
3434 return 0;
3435 }
3436
3437 static void opt_output_file(const char *filename)
3438 {
3439 AVFormatContext *oc;
3440 int i, err;
3441 AVOutputFormat *file_oformat;
3442 OutputStream *ost;
3443 InputStream *ist;
3444
3445 if (!strcmp(filename, "-"))
3446 filename = "pipe:";
3447
3448 oc = avformat_alloc_context();
3449 if (!oc) {
3450 print_error(filename, AVERROR(ENOMEM));
3451 exit_program(1);
3452 }
3453
3454 if (last_asked_format) {
3455 file_oformat = av_guess_format(last_asked_format, NULL, NULL);
3456 if (!file_oformat) {
3457 fprintf(stderr, "Requested output format '%s' is not a suitable output format\n", last_asked_format);
3458 exit_program(1);
3459 }
3460 last_asked_format = NULL;
3461 } else {
3462 file_oformat = av_guess_format(NULL, filename, NULL);
3463 if (!file_oformat) {
3464 fprintf(stderr, "Unable to find a suitable output format for '%s'\n",
3465 filename);
3466 exit_program(1);
3467 }
3468 }
3469
3470 oc->oformat = file_oformat;
3471 av_strlcpy(oc->filename, filename, sizeof(oc->filename));
3472
3473 if (!strcmp(file_oformat->name, "ffm") &&
3474 av_strstart(filename, "http:", NULL)) {
3475 /* special case for files sent to avserver: we get the stream
3476 parameters from avserver */
3477 int err = read_avserver_streams(oc, filename);
3478 if (err < 0) {
3479 print_error(filename, err);
3480 exit_program(1);
3481 }
3482 } else if (!nb_stream_maps) {
3483 /* pick the "best" stream of each type */
3484 #define NEW_STREAM(type, index)\
3485 if (index >= 0) {\
3486 ost = new_ ## type ## _stream(oc, index);\
3487 ost->source_index = index;\
3488 ost->sync_ist = &input_streams[index];\
3489 input_streams[index].discard = 0;\
3490 }
3491
3492 /* video: highest resolution */
3493 if (!video_disable && oc->oformat->video_codec != CODEC_ID_NONE) {
3494 int area = 0, idx = -1;
3495 for (i = 0; i < nb_input_streams; i++) {
3496 ist = &input_streams[i];
3497 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
3498 ist->st->codec->width * ist->st->codec->height > area) {
3499 area = ist->st->codec->width * ist->st->codec->height;
3500 idx = i;
3501 }
3502 }
3503 NEW_STREAM(video, idx);
3504 }
3505
3506 /* audio: most channels */
3507 if (!audio_disable && oc->oformat->audio_codec != CODEC_ID_NONE) {
3508 int channels = 0, idx = -1;
3509 for (i = 0; i < nb_input_streams; i++) {
3510 ist = &input_streams[i];
3511 if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO &&
3512 ist->st->codec->channels > channels) {
3513 channels = ist->st->codec->channels;
3514 idx = i;
3515 }
3516 }
3517 NEW_STREAM(audio, idx);
3518 }
3519
3520 /* subtitles: pick first */
3521 if (!subtitle_disable && oc->oformat->subtitle_codec != CODEC_ID_NONE) {
3522 for (i = 0; i < nb_input_streams; i++)
3523 if (input_streams[i].st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
3524 NEW_STREAM(subtitle, i);
3525 break;
3526 }
3527 }
3528 /* do something with data? */
3529 } else {
3530 for (i = 0; i < nb_stream_maps; i++) {
3531 StreamMap *map = &stream_maps[i];
3532 int source_idx = input_files[map->file_index].ist_index + map->stream_index;
3533
3534 if (map->disabled)
3535 continue;
3536
3537 ist = &input_streams[source_idx];
3538 switch (ist->st->codec->codec_type) {
3539 case AVMEDIA_TYPE_VIDEO: ost = new_video_stream(oc, source_idx); break;
3540 case AVMEDIA_TYPE_AUDIO: ost = new_audio_stream(oc, source_idx); break;
3541 case AVMEDIA_TYPE_SUBTITLE: ost = new_subtitle_stream(oc, source_idx); break;
3542 case AVMEDIA_TYPE_DATA: ost = new_data_stream(oc, source_idx); break;
3543 default:
3544 av_log(NULL, AV_LOG_ERROR, "Cannot map stream #%d.%d - unsupported type.\n",
3545 map->file_index, map->stream_index);
3546 exit_program(1);
3547 }
3548
3549 ost->source_index = source_idx;
3550 ost->sync_ist = &input_streams[input_files[map->sync_file_index].ist_index +
3551 map->sync_stream_index];
3552 ist->discard = 0;
3553 }
3554 }
3555
3556 av_dict_copy(&oc->metadata, metadata, 0);
3557 av_dict_free(&metadata);
3558
3559 av_dict_copy(&output_opts[nb_output_files], format_opts, 0);
3560 output_files[nb_output_files++] = oc;
3561
3562 /* check filename in case of an image number is expected */
3563 if (oc->oformat->flags & AVFMT_NEEDNUMBER) {
3564 if (!av_filename_number_test(oc->filename)) {
3565 print_error(oc->filename, AVERROR(EINVAL));
3566 exit_program(1);
3567 }
3568 }
3569
3570 if (!(oc->oformat->flags & AVFMT_NOFILE)) {
3571 /* test if it already exists to avoid loosing precious files */
3572 if (!file_overwrite &&
3573 (strchr(filename, ':') == NULL ||
3574 filename[1] == ':' ||
3575 av_strstart(filename, "file:", NULL))) {
3576 if (avio_check(filename, 0) == 0) {
3577 if (!using_stdin) {
3578 fprintf(stderr,"File '%s' already exists. Overwrite ? [y/N] ", filename);
3579 fflush(stderr);
3580 if (!read_yesno()) {
3581 fprintf(stderr, "Not overwriting - exiting\n");
3582 exit_program(1);
3583 }
3584 }
3585 else {
3586 fprintf(stderr,"File '%s' already exists. Exiting.\n", filename);
3587 exit_program(1);
3588 }
3589 }
3590 }
3591
3592 /* open the file */
3593 if ((err = avio_open(&oc->pb, filename, AVIO_FLAG_WRITE)) < 0) {
3594 print_error(filename, err);
3595 exit_program(1);
3596 }
3597 }
3598
3599 oc->preload= (int)(mux_preload*AV_TIME_BASE);
3600 oc->max_delay= (int)(mux_max_delay*AV_TIME_BASE);
3601 oc->flags |= AVFMT_FLAG_NONBLOCK;
3602
3603 /* copy chapters */
3604 if (chapters_input_file >= nb_input_files) {
3605 if (chapters_input_file == INT_MAX) {
3606 /* copy chapters from the first input file that has them*/
3607 chapters_input_file = -1;
3608 for (i = 0; i < nb_input_files; i++)
3609 if (input_files[i].ctx->nb_chapters) {
3610 chapters_input_file = i;
3611 break;
3612 }
3613 } else {
3614 av_log(NULL, AV_LOG_ERROR, "Invalid input file index %d in chapter mapping.\n",
3615 chapters_input_file);
3616 exit_program(1);
3617 }
3618 }
3619 if (chapters_input_file >= 0)
3620 copy_chapters(chapters_input_file, nb_output_files - 1);
3621
3622 /* copy metadata */
3623 for (i = 0; i < nb_meta_data_maps; i++) {
3624 AVFormatContext *files[2];
3625 AVDictionary **meta[2];
3626 int j;
3627
3628 #define METADATA_CHECK_INDEX(index, nb_elems, desc)\
3629 if ((index) < 0 || (index) >= (nb_elems)) {\
3630 av_log(NULL, AV_LOG_ERROR, "Invalid %s index %d while processing metadata maps\n",\
3631 (desc), (index));\
3632 exit_program(1);\
3633 }
3634
3635 int in_file_index = meta_data_maps[i][1].file;
3636 if (in_file_index < 0)
3637 continue;
3638 METADATA_CHECK_INDEX(in_file_index, nb_input_files, "input file")
3639
3640 files[0] = oc;
3641 files[1] = input_files[in_file_index].ctx;
3642
3643 for (j = 0; j < 2; j++) {
3644 MetadataMap *map = &meta_data_maps[i][j];
3645
3646 switch (map->type) {
3647 case 'g':
3648 meta[j] = &files[j]->metadata;
3649 break;
3650 case 's':
3651 METADATA_CHECK_INDEX(map->index, files[j]->nb_streams, "stream")
3652 meta[j] = &files[j]->streams[map->index]->metadata;
3653 break;
3654 case 'c':
3655 METADATA_CHECK_INDEX(map->index, files[j]->nb_chapters, "chapter")
3656 meta[j] = &files[j]->chapters[map->index]->metadata;
3657 break;
3658 case 'p':
3659 METADATA_CHECK_INDEX(map->index, files[j]->nb_programs, "program")
3660 meta[j] = &files[j]->programs[map->index]->metadata;
3661 break;
3662 }
3663 }
3664
3665 av_dict_copy(meta[0], *meta[1], AV_DICT_DONT_OVERWRITE);
3666 }
3667
3668 /* copy global metadata by default */
3669 if (metadata_global_autocopy && nb_input_files)
3670 av_dict_copy(&oc->metadata, input_files[0].ctx->metadata,
3671 AV_DICT_DONT_OVERWRITE);
3672 if (metadata_streams_autocopy)
3673 for (i = 0; i < oc->nb_streams; i++) {
3674 InputStream *ist = &input_streams[output_streams_for_file[nb_output_files-1][i]->source_index];